CN116827265B - Photovoltaic module stacking and returning deviation rectifying device and method - Google Patents
Photovoltaic module stacking and returning deviation rectifying device and method Download PDFInfo
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- CN116827265B CN116827265B CN202311094326.0A CN202311094326A CN116827265B CN 116827265 B CN116827265 B CN 116827265B CN 202311094326 A CN202311094326 A CN 202311094326A CN 116827265 B CN116827265 B CN 116827265B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 101
- 230000002950 deficient Effects 0.000 claims description 44
- 230000008439 repair process Effects 0.000 claims description 22
- 238000012360 testing method Methods 0.000 claims description 10
- 238000012937 correction Methods 0.000 claims description 8
- 230000007547 defect Effects 0.000 claims description 4
- 238000013507 mapping Methods 0.000 claims description 3
- 238000003475 lamination Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005401 electroluminescence Methods 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 229910021419 crystalline silicon Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
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- 230000006870 function Effects 0.000 description 1
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- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S99/00—Subject matter not provided for in other groups of this subclass
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Abstract
The application relates to a deviation rectifying device and method for a photovoltaic module. The photovoltaic module deviation correcting device comprises a mounting bracket, a laser mechanism, a driving mechanism and a control module, wherein the laser mechanism is movably arranged on the mounting bracket and is used for emitting positioning light rays to the photovoltaic module, and the positioning light rays can be projected on the photovoltaic module to form a positioning graph matched with the outline shape of the battery string. The driving mechanism is in driving connection with the laser mechanism and is used for driving the laser mechanism to move on the mounting bracket. The control module is electrically connected with the driving mechanism and the laser mechanism, and is used for receiving the bad information containing the bad battery string position information and controlling the driving mechanism to drive the laser mechanism to move to the designated position according to the bad information so that the laser mechanism marks the position of the bad battery string on the photovoltaic module through the positioning graph. The deviation correcting device for the photovoltaic module improves the lamination repairing efficiency and improves the lamination repairing quality of the photovoltaic module.
Description
Technical Field
The application relates to the technical field of solar cell preparation, in particular to a photovoltaic module folding and returning deviation rectifying device and method.
Background
With the rapid development of technology, the problems of energy shortage and the like are also coming, and among the existing sustainable energy sources, solar energy is definitely the cleanest, most common and most potential alternative energy source, so that solar cells are also rapidly developing.
The photovoltaic module is an important component of the solar cell, and in the manufacturing process of the photovoltaic module, adverse phenomena such as splitting, merging, parallel-serial, hidden splitting, breaking, cold joint, overselding and foreign matters of the photovoltaic module can be caused due to a series of influence factors such as instability of equipment, poor material supply, uncertainty of personnel states, and changes of indoor temperature and humidity. Because the influence factors exist all the time, the shielding cannot be thoroughly removed, and the defective products can be processed only by a repairing method. The maintenance process is to split the laminated photovoltaic module, perform corresponding treatment on the defective cell or defective cell string in the photovoltaic module according to the defective condition, and then re-arrange the repaired cell string, which is called laminated repair, and is called lamination return for short.
At present, when on-site reworking personnel rearranges the reworked battery strings, the operation is completely performed according to personnel proficiency and personal experience, the spacing between battery pieces and the spacing between battery strings of the photovoltaic module cannot be ensured, and the quality of products is easily ignored by the operation personnel on the premise of ensuring the yield because of heavy reworking workload, so that the quality of the products is difficult to effectively control.
Disclosure of Invention
Based on the above, it is necessary to provide a photovoltaic module stacking and returning correction device and a photovoltaic module stacking and returning correction method aiming at the quality problem of how to improve the stack repairing of the photovoltaic module.
A photovoltaic module fold return correction device comprising:
a mounting bracket;
the laser mechanism is movably arranged on the mounting bracket and is used for emitting positioning light to the photovoltaic module, and the positioning light can be projected on the photovoltaic module to form a positioning graph matched with the outline shape of the battery string;
the driving mechanism is in driving connection with the laser mechanism and is used for driving the laser mechanism to move on the mounting bracket; the method comprises the steps of,
the control module is electrically connected with the driving mechanism and the laser mechanism, and is used for receiving bad information containing the position information of the bad battery strings in the photovoltaic module, controlling the driving mechanism to drive the laser mechanism to move to a designated position according to the bad information, and enabling the laser mechanism to mark the position of the bad battery strings on the photovoltaic module through the positioning graph.
The technical scheme is further described as follows:
in one embodiment, the mounting bracket is provided with a track, and the laser mechanism is movably arranged on the track.
In one embodiment, the tracks comprise first tracks and second tracks which are arranged in an intersecting manner, the number of the first tracks is a plurality, and the first tracks are parallel and are arranged at intervals; the number of the second tracks is multiple, and the second tracks are parallel and are arranged at intervals.
In one embodiment, the first rails extend in a direction parallel to a first direction, and the second rails extend in a direction parallel to a second direction, and the first direction is perpendicular to the second direction.
In one embodiment, the laser assembly includes a plurality of laser transmitters, a plurality of laser transmitters are arranged on the mounting bracket at intervals, and the positioning light rays projected on the photovoltaic assembly by the laser transmitters are enclosed together to form the positioning pattern.
In one embodiment, the driving mechanism comprises a plurality of driving pieces, and the driving pieces are connected with the laser transmitters in a one-to-one correspondence manner.
In one embodiment, the photovoltaic module fold-back deviation rectifying device further comprises a production line for bearing the photovoltaic module;
the mounting bracket is erected above the assembly line; or the mounting bracket, the laser mechanism and the driving mechanism are embedded in the assembly line.
The application also provides a photovoltaic module fold return correction method, which comprises the following steps:
acquiring bad information, wherein the bad information comprises position information of bad battery strings in the photovoltaic module;
positioning the position of the defective battery string on the photovoltaic module according to the defective information, and controlling a driving mechanism to drive a laser mechanism to move to a designated position corresponding to the position of the defective battery string;
controlling the laser mechanism to emit positioning light rays to the photovoltaic module, so that the positioning light rays are projected on the photovoltaic module to form a positioning graph matched with the outline shape of the bad battery string;
repairing the bad battery string;
and taking the positioning graph as a reference standard, and performing string arranging operation on the repaired bad battery strings on the photovoltaic module.
In one embodiment, before the step of obtaining the poor information, the method further includes the following steps:
performing an EL test on the photovoltaic module to sort out the photovoltaic module with the bad problem;
outputting corresponding bad information according to the bad problem in the photovoltaic module, and binding the bad information to an identity tag of the photovoltaic module;
transferring the photovoltaic module with the bad problem to a repairing production line, and scanning the identity tag of the photovoltaic module on the repairing production line to acquire the bad information;
and sending the bad information to a control module.
In one embodiment, the step of locating the position of the defective battery string on the photovoltaic module according to the defective information and controlling the driving mechanism to drive the laser mechanism to move to a specified position corresponding to the defective battery string position includes:
establishing a first coordinate system by taking one vertex angle of the photovoltaic module as an origin, and outputting a first coordinate corresponding to the position of the bad battery string;
establishing a second coordinate system in the mounting bracket, mapping the first coordinate to the second coordinate system and outputting a corresponding second coordinate;
and controlling the driving mechanism to drive the laser mechanism to move to the second coordinate on the mounting bracket.
According to the photovoltaic module stacking and returning deviation correcting device, the control module receives the bad information comprising the position information of the bad battery strings in the photovoltaic module, so that the position of the bad battery strings in the photovoltaic module can be tracked, the driving mechanism is controlled to drive the laser mechanism to move to the designated position corresponding to the position of the bad battery strings, positioning light rays emitted by the laser mechanism are projected on the photovoltaic module to form a positioning graph matched with the outline shape of the bad battery strings, and the position of the bad battery strings on the photovoltaic module can be marked. When the defective battery strings after repair are subjected to string arranging operation, the positioning graph can be used as a reference standard for string arranging operation, so that the situation that operators operate completely according to proficiency and personal experience is avoided, the string arranging efficiency is improved, the accuracy of the spacing between the battery pieces and the spacing between the battery strings after the strings are rearranged is ensured, and the quality of the laminated repair of the photovoltaic module is improved while the laminated repair efficiency is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, illustrate and explain the application and are not to be construed as limiting the application.
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Moreover, the figures are not drawn to a 1:1 scale, and the relative sizes of various elements are merely exemplary in the figures, and are not necessarily drawn to true scale. In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of a photovoltaic module fold-back deviation rectifying device.
Fig. 2 is a flowchart illustrating steps of a method for correcting a foldback error of a photovoltaic module according to an embodiment.
Reference numerals:
10. a mounting bracket; 11. a first track; 12. a second track; 20. a laser mechanism; 21. a laser emitter; 30. a driving mechanism; 40. a control module; 50. a photovoltaic module.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.
In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.
An embodiment of the present application provides a photovoltaic module stacking deviation correcting device, which is used for marking the position of a bad battery string in a photovoltaic module 50. Specifically, referring to fig. 1, the deviation rectifying device for the photovoltaic module 50 in an embodiment includes a mounting bracket 10, a laser mechanism 20, a driving mechanism 30 and a control module 40, wherein the mounting bracket 10 is a mounting base of the laser mechanism 20, the driving mechanism 30 and the control mechanism. The laser mechanism 20 is movably arranged on the mounting bracket 10, and the laser mechanism 20 is used for emitting positioning light to the photovoltaic module 50, and the positioning light can be projected on the photovoltaic module 50 to form a positioning graph matched with the outline shape of the battery string. For example, in one embodiment, the outer contour of the cell string is rectangular, and the positioning pattern formed by projecting the positioning light onto the photovoltaic module 50 is also rectangular. It will be appreciated that, in another embodiment, the positioning pattern formed by projecting the positioning light on the photovoltaic module 50 may be other shapes, so long as the positioning pattern matches the shape of the battery string, which is not limited herein. Further, a driving mechanism 30 is drivingly connected to the laser mechanism 20, and the driving mechanism 30 is used for driving the laser mechanism 20 to move on the mounting bracket 10. The control module 40 is electrically connected to the driving mechanism 30 and the laser mechanism 20, and the control module 40 is configured to receive the defect information including the position information of the defective battery string, and control the driving mechanism 30 to drive the laser mechanism 20 to move to a specified position according to the defect information, so that the laser mechanism 20 marks the position of the defective battery string on the photovoltaic module 50 through a positioning pattern.
Specifically, in an embodiment, the above-mentioned deviation correcting device for the photovoltaic module 50 may be erected above a repair line when in use, and during use, an EL (electroluminescence) test is performed on the photovoltaic module 50 to sort out the photovoltaic module 50 having a bad problem, where the EL test is an electroluminescence test, and the EL test uses an electroluminescence principle of crystalline silicon to capture a near infrared image of the crystalline silicon in combination with a high-resolution infrared camera, and then uses image software to analyze and process the obtained near infrared image to detect whether the photovoltaic module 50 has a bad problem such as a split, a parallel, a hidden crack, a broken sheet, a cold joint, an overseld, a broken grid, and a foreign object.
And outputting corresponding bad information according to the bad problem of the photovoltaic module 50, wherein the bad information comprises the position information of the bad battery string in the photovoltaic module 50, and meanwhile, the bad information is bound to an identity tag of the photovoltaic module 50, wherein the identity tag comprises, but is not limited to, a two-dimensional code, a bar code, an electronic tag or the like.
And then the photovoltaic module 50 with the bad problem is transferred to a repair line to wait for repair, and the identity tag of the photovoltaic module 50 is scanned on the repair line by workers or automation equipment to acquire bad information.
The poor information is then sent to the control module 40. The control module 40 locates the position of the defective battery string on the photovoltaic module 50 according to the defective information, and controls the driving mechanism 30 to drive the laser mechanism 20 to move to a specified position corresponding to the defective battery string position.
And then controlling the laser mechanism 20 to emit positioning light to the photovoltaic module 50, so that the positioning light is projected on the photovoltaic module 50 to form a positioning graph matched with the outline shape of the defective battery string, and the position of the defective battery string on the photovoltaic module 50 is marked.
And then the defective battery string is disassembled and repaired.
Finally, the defective cell string after repair is arranged on the photovoltaic module 50 by taking the positioning pattern as a reference standard. When the strings are arranged, the outer contour of the repaired battery strings is overlapped with the positioning patterns, so that the accurate installation of the battery strings in place can be ensured, and the string arranging work is completed.
The photovoltaic module stacking deviation correcting device receives the bad information comprising the position information of the bad battery string in the photovoltaic module 50 through the control module 40, so that the position of the bad battery string in the photovoltaic module 50 can be tracked, the laser mechanism 20 is driven to move to a designated position corresponding to the position of the bad battery string through the control driving mechanism 30, positioning light rays emitted by the laser mechanism 20 are projected on the photovoltaic module 50 to form a positioning graph matched with the outline shape of the bad battery string, and the position of the bad battery string on the photovoltaic module 50 can be marked. When the defective battery strings after repair are subjected to string arranging operation, the positioning graph can be used as a reference standard for string arranging operation, so that the situation that operators operate completely according to proficiency and personal experience is avoided, the string arranging efficiency is improved, the accuracy of the spacing between the battery pieces and the spacing between the battery strings after string arranging again is ensured, and the quality of stack repair of the photovoltaic module 50 is improved while the stack repair efficiency is improved.
Optionally, in an embodiment, the mounting bracket 10 is provided with a track on which the laser mechanism 20 is movably disposed. The movement of the laser mechanism 20 can be made smoother by moving the laser mechanism 20 along the track.
Specifically, referring to fig. 1, in an embodiment, the tracks include a first track 11 and a second track 12 that are disposed to intersect, where the number of the first tracks 11 is a plurality, and the plurality of first tracks 11 are disposed in parallel and at intervals. The number of the second tracks 12 is a plurality, and the plurality of second tracks 12 are parallel and are arranged at intervals. By arranging the first rails 11 and the second rails 12 to intersect, the laser mechanism 20 can be moved to more positions, so as to mark bad battery strings at different positions in the photovoltaic module 50. Specifically, in the present embodiment, the first tracks 11 are provided with three and the second tracks 12 are provided with five, all of the first tracks 11 intersect with the second tracks 12, and all of the second tracks 12 intersect with the first tracks 11. Further, the number of the first tracks 11 and the number of the second tracks 12 may be set according to the size of the photovoltaic module 50 and the number of the battery strings, and when the size of the photovoltaic module 50 is larger and the number of the battery strings is larger, the number of the first tracks 11 and the number of the second tracks 12 may be set to be larger, so that the moving range of the laser mechanism 20 can cover the positions of all the battery strings. When the size of the photovoltaic module 50 is small and the number of battery strings is small, the number of the first rails 11 and the number of the second rails 12 may be set to be small, so that the cost can be saved.
Further, the plurality of first rails 11 each extend in a direction parallel to the first direction, and the plurality of second rails 12 each extend in a direction parallel to the second direction, and the first direction is perpendicular to the second direction. Preferably, in the present embodiment, the first direction is the length direction of the photovoltaic module 50 (i.e. the direction indicated by the arrow S1 in fig. 1), and the second direction is the width direction of the photovoltaic module 50 (i.e. the direction indicated by the arrow S2 in fig. 1). In this way, the laser mechanism 20 can be moved in the longitudinal direction and the width direction of the photovoltaic module 50, so that it can be moved to a position corresponding to the defective cell string, and the defective cell string can be marked.
Optionally, in an embodiment, the laser assembly includes a plurality of laser emitters 21, the plurality of laser emitters 21 are disposed on the mounting bracket 10 at intervals, and positioning light beams projected on the photovoltaic assembly 50 by the plurality of laser emitters 21 are enclosed together to form a positioning pattern. Through configuring laser subassembly to including a plurality of laser emitter 21 to through the relative position of each laser emitter 21 of adjustment, can throw out different location figures, with the bad battery cluster of adaptation not unidimensional size, no matter how the photovoltaic module 50 size, battery cluster size change, do not influence the photovoltaic module and fold and return deviation correcting device's use, make the photovoltaic module fold and return deviation correcting device's adaptability stronger, the maneuverability is better.
Illustratively, in this embodiment, the laser assembly includes four laser emitters 21, each laser emitter 21 being a line laser, the pattern of the line laser projected onto the photovoltaic assembly 50 being a straight line segment. In this way, the four positioning lights projected by the four laser transmitters 21 are respectively overlapped with the four sides of the defective battery string, so that the position of the defective battery string on the photovoltaic module 50 can be marked. Preferably, in this embodiment, the laser transmitter 21 is an infrared in-line laser, the power of the infrared in-line laser is 500MW, the wavelength is 650+ -5 nm, the straightness deviation is <0.5%, the working temperature is 10-35 ℃, and the service life is >10000H. The infrared linear laser can make a tiling straight line of 1.2 meters at a height of 1.5 meters, and red light is visible to naked eyes, so that the positions of bad battery strings can be clearly marked. Alternatively, in another embodiment, the light emitted by the laser emitter 21 may be other visible light such as green light, which is not limited herein.
It should be noted that, in another embodiment, the number of the laser transmitters 21 may be two, the two laser transmitters 21 are all cross lasers, the pattern of the cross lasers projected on the photovoltaic module 50 is cross, so that the positioning light projected by the two cross lasers can also be enclosed to form a rectangular pattern matched with the outline of the defective battery string, thereby realizing marking the position of the defective battery string on the photovoltaic module 50. Of course, in other embodiments, the number of laser emitters 21 may be one, and the positioning pattern projected by the laser emitters 21 on the photovoltaic module 50 may be rectangular, so that the positioning pattern projected by one laser emitter 21 may match the outline pattern of the defective battery cell.
Optionally, in an embodiment, the driving mechanism 30 includes a plurality of driving members, and the plurality of driving members are connected to the plurality of laser emitters 21 in a one-to-one correspondence manner, so as to drive each laser emitter 21 to move independently, and further adapt to the photovoltaic modules 50 with different sizes and the battery strings with different sizes. Preferably, the driving member may be a roller with an independent power system, and the laser transmitter 21 is connected to the rail through the roller, so that the laser transmitter 21 can travel along the rail through the driving of the roller. In another embodiment, the driving member may be a servo motor, and the servo motor is connected to the laser transmitter 21 through a transmission mechanism, so that the laser transmitter 21 can be driven to walk along the track.
Optionally, in an embodiment, the photovoltaic module folding and returning correction device further includes a pipeline for carrying the photovoltaic module 50, and the mounting bracket 10 is erected above the pipeline. Thus, the laser mechanism 20 can emit positioning light to the photovoltaic module 50 from top to bottom, so that a clear positioning pattern can be projected on the front surface of the photovoltaic module 50, a worker can conveniently arrange strings, and the mounting bracket 10 is erected above the assembly line, so that the mounting space can be saved.
In another embodiment, the mounting bracket 10, the laser mechanism 20 and the driving mechanism 30 may be embedded in the assembly line and located below the photovoltaic module 50. The laser mechanism 20 can emit positioning light from bottom to top to the photovoltaic module 50, so that a clear positioning pattern can be projected on the back of the photovoltaic module 50, and the positioning pattern can be observed by a worker through the glass of the photovoltaic module 50 because the glass is transparent. Therefore, a reference standard can be provided for the string arranging operation of the staff, and the laser mechanism 20 can emit positioning light from bottom to top to the photovoltaic module 50, so that the positioning light can not be blocked when the staff performs the string arranging operation, and the accurate alignment of the battery strings is facilitated.
Optionally, in an embodiment, the control module 40 includes a PLC device, which is also called a PLC programmable logic controller, and the PLC device includes an internal CPU, a memory storing instructions and data, an input/output unit, a power module, a digital/analog unit, and the like. The PLC device executes program instructions through the input and output unit, the functional module, the communication module, the CPU and the memory to achieve the required functions.
Referring to fig. 2, the application further provides a method for correcting the deviation of the photovoltaic module, and at least part of the steps of the method are implemented by adopting the photovoltaic module deviation correcting device of any embodiment. Specifically, the method for rectifying the foldback error of the photovoltaic module in one embodiment comprises the following steps:
s110, acquiring bad information including the position information of bad battery strings in the photovoltaic module 50;
the poor battery string refers to a battery string with the problems of cracking, parallel-to-sheet, parallel-to-series, hidden cracking, broken sheets, cold joint, overselding, broken grids, foreign matters and the like. The implementation manner of acquiring the bad information may be that a worker manually inputs the bad information to the control module 40, or that a computer program automatically sends the bad information to the control module 40.
And S120, positioning the position of the defective battery string on the photovoltaic module 50 according to the defective information, and controlling the driving mechanism 30 to drive the laser mechanism 20 to move to a designated position corresponding to the position of the defective battery string, so as to mark the position of the defective battery string on the photovoltaic module 50.
And S130, controlling the laser mechanism 20 to emit positioning light to the photovoltaic module 50 so that the positioning light projects on the photovoltaic module 50 to form a positioning graph matched with the outline shape of the defective battery string, thereby marking the position of the defective battery string on the photovoltaic module 50.
And S140, repairing the bad battery string.
And S150, performing string arranging operation on the repaired bad battery strings on the photovoltaic module 50 by taking the positioning graph as a reference standard.
Specifically, when the strings are arranged, the outer contour of the repaired battery strings is overlapped with the positioning patterns, so that the accurate installation of the battery strings in place can be ensured, and the string arranging work is completed.
Optionally, in an embodiment, the step of step S110 is preceded by the following steps:
and S101, performing EL test on the photovoltaic module 50 to sort out the photovoltaic module 50 with the bad problem.
Specifically, the EL test is an electroluminescence test, and the EL test uses the electroluminescence principle of crystalline silicon to shoot a near infrared image of crystalline silicon in combination with a high-resolution infrared camera, and then analyzes and processes the acquired near infrared image by image software to detect whether the photovoltaic module 50 has defects such as cracking, parallel-to-parallel, hidden cracking, broken sheets, cold welding, overselding, gate breakage, and foreign matters.
And S102, outputting corresponding bad information according to the bad problem in the photovoltaic module 50, and binding the bad information to an identity tag of the photovoltaic module 50.
The form of the identity tag comprises, but is not limited to, a two-dimensional code, a bar code, an electronic tag or the like.
And S103, transferring the photovoltaic module 50 with the bad problem to a repair production line, and scanning the identity label of the photovoltaic module 50 on the repair production line to obtain bad information.
Specifically, the transfer of the photovoltaic module 50 having the bad problem to the repair line may be performed by a worker, or may be performed by an automated apparatus such as a robot arm. The step of scanning the identity tag of the photovoltaic module 50 may be performed by manually operating a scanning instrument by a worker, or may be performed by installing the scanning instrument on a repair line, and automatically scanning the identity tag of the photovoltaic module 50 when the photovoltaic module passes through the repair line.
Optionally, in an embodiment, step S120 includes the steps of:
s121, establishing a first coordinate system with one of the top corners of the photovoltaic module 50 as an origin, and outputting a first coordinate corresponding to the position of the defective cell string.
Specifically, for example, the long side of the photovoltaic module 50 is defined as the X-axis, the short side is defined as the Y-axis, and the coordinates of one of the vertex angles are defined as (0, 0), so that each cell string has a corresponding independent coordinate.
S122, a second coordinate system is established in the mounting bracket 10, the first coordinate is mapped to the second coordinate system, and the corresponding second coordinate is output.
Specifically, assuming that the first coordinate corresponding to the defective battery string in the first coordinate system is (X, Y), the second coordinate obtained by mapping the first coordinate to the second coordinate system is (x+a, y+b).
S123, controlling the driving mechanism 30 to drive the laser mechanism 20 to move to the second coordinate on the mounting frame 10.
According to the photovoltaic module folding and deviation rectifying method, the control module 40 is used for acquiring the bad information comprising the position information of the bad battery string in the photovoltaic module 50 so as to track the position of the bad battery string in the photovoltaic module 50, and then the driving mechanism 30 is controlled to drive the laser mechanism 20 to move to the designated position corresponding to the position of the bad battery string, so that the positioning light emitted by the laser mechanism 20 can be projected on the photovoltaic module 50 to form a positioning graph matched with the outline shape of the bad battery string, and the position of the bad battery string on the photovoltaic module 50 is marked. When the defective battery strings after repair are arranged on the photovoltaic module 50, the positioning graph can be used as a reference standard for the arrangement operation, so that the arrangement operation of workers is avoided completely according to the proficiency and personal experience, the arrangement efficiency is improved, the accuracy of the spacing between the battery pieces and the spacing between the battery strings after the rearrangement is ensured, and the quality of the stack repair of the photovoltaic module 50 is improved while the stack repair efficiency is improved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. The utility model provides a photovoltaic module fold returns deviation correcting device which characterized in that includes:
a mounting bracket (10);
the laser mechanism (20) is movably arranged on the mounting bracket (10), the laser mechanism (20) is used for emitting positioning light rays to the photovoltaic module (50), and the positioning light rays can be projected on the photovoltaic module (50) to form a positioning graph matched with the outline shape of the battery string;
the driving mechanism (30) is in driving connection with the laser mechanism (20), and the driving mechanism (30) is used for driving the laser mechanism (20) to move on the mounting bracket (10); the method comprises the steps of,
the control module (40), control module (40) with actuating mechanism (30) and laser mechanism (20) electric connection, control module (40) are used for receiving and include bad information of bad battery cluster position information in photovoltaic module (50), and according to bad information control actuating mechanism (30) drive laser mechanism (20) remove to appointed position, so that laser mechanism (20) pass through the location figure marks the position of bad battery cluster on photovoltaic module (50).
2. The photovoltaic module folding and returning correction device according to claim 1, characterized in that a track is provided on the mounting bracket (10), and the laser mechanism (20) is movably provided on the track.
3. The photovoltaic module stacking deviation correcting device according to claim 2, wherein the tracks comprise a first track (11) and a second track (12) which are arranged in an intersecting manner, the number of the first tracks (11) is a plurality, and the plurality of first tracks (11) are arranged in parallel and at intervals; the number of the second tracks (12) is multiple, and the second tracks (12) are parallel and are arranged at intervals.
4. A photovoltaic module fold return rectifying device according to claim 3, characterized in that a plurality of said first tracks (11) each extend in a direction parallel to a first direction, a plurality of said second tracks (12) each extend in a direction parallel to a second direction, said first direction being perpendicular to said second direction.
5. The photovoltaic module fold return correction device according to claim 1, wherein the laser module comprises a plurality of laser transmitters (21), the plurality of laser transmitters (21) are arranged on the mounting bracket (10) at intervals, and the positioning light rays projected on the photovoltaic module (50) by the plurality of laser transmitters (21) are enclosed together to form the positioning pattern.
6. The photovoltaic module fold return rectifying device according to claim 5, characterized in that said driving mechanism (30) comprises a plurality of driving members, a plurality of said driving members being connected to a plurality of said laser emitters (21) in one-to-one correspondence.
7. The photovoltaic module fold return correction device according to claim 1, further comprising a pipeline for carrying the photovoltaic modules (50);
the mounting bracket (10) is erected above the assembly line; or the mounting bracket (10), the laser mechanism (20) and the driving mechanism (30) are all embedded in the assembly line.
8. A method for correcting the folding and returning of a photovoltaic module, which is implemented by adopting the device for correcting the folding and returning of the photovoltaic module according to any one of claims 1 to 7, and is characterized by comprising the following steps:
acquiring bad information, wherein the bad information comprises position information of bad battery strings in the photovoltaic module (50);
positioning the position of the defective battery string on the photovoltaic module (50) according to the defective information, and controlling a driving mechanism (30) to drive a laser mechanism (20) to move to a specified position corresponding to the position of the defective battery string;
controlling the laser mechanism (20) to emit positioning light rays to the photovoltaic module (50) so that the positioning light rays are projected on the photovoltaic module (50) to form a positioning graph matched with the outline shape of the bad battery string;
repairing the bad battery string;
and carrying out string arranging operation on the repaired bad battery strings on the photovoltaic module (50) by taking the positioning graph as a reference standard.
9. The method for correcting the foldback error of a photovoltaic module according to claim 8, further comprising the steps of, before the step of obtaining the defect information:
performing an EL test on the photovoltaic module (50) to sort out the photovoltaic module (50) having a defective problem;
outputting the corresponding bad information according to the bad problem existing in the photovoltaic module (50), and binding the bad information to an identity tag of the photovoltaic module (50);
transferring the photovoltaic module (50) with the bad problem to a repair line, and scanning the identity tag of the photovoltaic module (50) on the repair line to acquire the bad information;
the reject message is sent to a control module (40).
10. The method of claim 8, wherein the step of locating the position of the defective cell string on the photovoltaic module (50) according to the defective information and controlling the driving mechanism (30) to drive the laser mechanism (20) to move to a specified position corresponding to the defective cell string position comprises:
establishing a first coordinate system by taking one vertex angle of the photovoltaic module (50) as an origin, and outputting a first coordinate corresponding to the position of the bad battery string;
establishing a second coordinate system in the mounting bracket (10), mapping the first coordinate to the second coordinate system and outputting a corresponding second coordinate;
controlling the driving mechanism (30) to drive the laser mechanism (20) to move to the second coordinate on the mounting bracket (10).
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2951022A1 (en) * | 2009-10-07 | 2011-04-08 | Nexcis | MANUFACTURE OF THIN LAYERS WITH PHOTOVOLTAIC PROPERTIES, BASED ON TYPE I-III-VI2 ALLOY, BY SUCCESSIVE ELECTRO-DEPOSITS AND THERMAL POST-TREATMENT. |
| CN115966634A (en) * | 2023-02-21 | 2023-04-14 | 滁州隆基乐叶光伏科技有限公司 | Battery string conveying method and battery pack production device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2951022A1 (en) * | 2009-10-07 | 2011-04-08 | Nexcis | MANUFACTURE OF THIN LAYERS WITH PHOTOVOLTAIC PROPERTIES, BASED ON TYPE I-III-VI2 ALLOY, BY SUCCESSIVE ELECTRO-DEPOSITS AND THERMAL POST-TREATMENT. |
| CN115966634A (en) * | 2023-02-21 | 2023-04-14 | 滁州隆基乐叶光伏科技有限公司 | Battery string conveying method and battery pack production device |
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