CN117199177A - Photovoltaic cell string gap adjusting device and method - Google Patents

Abstract

The invention relates to the technical field of photovoltaic module production, in particular to a photovoltaic cell string gap adjusting device and a method, wherein the device comprises a frame, a conveying belt, an adjusting module, an acquisition unit and a controller; the frame is provided with an adjusting area; the conveying belt is used for conveying the photovoltaic module to the adjusting area or conveying the photovoltaic module away from the adjusting area; the adjusting assembly comprises a three-coordinate moving table arranged on the frame, an angle adjusting motor arranged at the output end of the three-coordinate moving table, an adjusting frame arranged at the output end of the angle adjusting motor and a row of vacuum suckers which are arranged on the adjusting frame at left and right intervals and are used for sucking up or putting down the photovoltaic cell strings; the acquisition unit is arranged on the frame or the adjusting component and used for shooting image parameters of a plurality of photovoltaic cell strings of the photovoltaic component in the adjusting area. By implementing the invention, the position offset of the photovoltaic cell strings on the glass can be reduced, the mutual gap between the photovoltaic cell strings is ensured, the mutual influence of the photovoltaic cell strings during operation is avoided, and the quality of the photovoltaic module is improved.

Description

Photovoltaic cell string gap adjusting device and method

Technical Field

The invention relates to the technical field of photovoltaic module production, in particular to a photovoltaic cell string gap adjusting device and a method.

Background

The photovoltaic module is used as a core part in a photovoltaic power generation system and is also the most important part in a solar power generation system. The photovoltaic module mainly comprises nine core components such as a photovoltaic cell, an interconnection bar, a bus bar, glass, EVA, a backboard, a frame, silica gel, a junction box and the like.

For the photovoltaic cell panel, the front and back sides of a plurality of photovoltaic cell pieces are welded by using an interconnection bar, the photovoltaic cell strings are processed, then the photovoltaic cell strings are transferred to glass for positioning and typesetting, and then the photovoltaic cell strings are welded to a plurality of groups of series-welded photovoltaic cell strings on the glass through a bus bar. In the prior art, after the photovoltaic cell strings are positioned and typeset on glass, the typeset photovoltaic modules are required to be conveyed to the next working procedure through a plurality of conveying devices and are welded with bus bars, the photovoltaic modules are conveyed through the plurality of devices, the photovoltaic cell strings on the glass are easy to shift in position and angle, the mutual gaps of the photovoltaic cell strings are changed, so that the photovoltaic cell strings are influenced during working, and the quality of the photovoltaic modules is influenced.

Disclosure of Invention

The invention aims to solve the technical problem of providing a photovoltaic cell string gap adjustment device and a photovoltaic cell string gap adjustment method, which can reduce the position offset of a photovoltaic cell string on glass and ensure the mutual gap of the photovoltaic cell strings.

In order to solve the technical problems, the invention provides a photovoltaic cell string gap adjusting device, comprising

A frame provided with an adjustment area;

the conveying belt is used for conveying the photovoltaic module to the adjustment area or conveying the photovoltaic module away from the adjustment area;

the adjusting assembly comprises a three-coordinate moving table arranged on the frame, an angle adjusting motor arranged at the output end of the three-coordinate moving table, an adjusting frame arranged at the output end of the angle adjusting motor and a row of vacuum suckers which are arranged on the adjusting frame at left and right intervals and are used for sucking up or putting down the photovoltaic cell strings;

the acquisition unit is arranged on the frame or the adjusting component and used for shooting image parameters of a plurality of photovoltaic cell strings of the photovoltaic component in the adjusting area;

and the controller is used for reading the image parameters shot by the acquisition unit, calculating the position parameters to be adjusted and the angle parameters to be adjusted of the photovoltaic cell strings, and driving the adjustment assembly to sequentially adjust the front, back, left and right positions and angles of the plurality of photovoltaic cell strings on the photovoltaic assembly.

The photovoltaic cell string gap adjusting device provided by the invention can identify the position parameters to be adjusted and the angle parameters to be adjusted of a plurality of photovoltaic cell strings on the photovoltaic module, and drive the adjusting module to sequentially adjust the front, back, left and right positions and angles of the plurality of photovoltaic cell strings on the photovoltaic module, so that the position offset of the photovoltaic cell strings on glass is reduced, the gaps among the photovoltaic cell strings are ensured, the influence of the photovoltaic cell strings during operation is avoided, and the quality of the photovoltaic module is improved.

As a preferred embodiment of the first aspect, the three-coordinate moving platform includes a lifting frame slidingly connected to the frame up and down, a first lifting cylinder mounted on the frame for driving the lifting frame to move up and down, a translation frame slidingly connected to the lifting frame back and forth, a travel cylinder mounted on the lifting frame for driving the translation frame to move back and forth, a first adjusting slide block slidingly connected to the translation frame back and forth, a first servo motor cylinder mounted on the translation frame for driving the first adjusting slide block to move back and forth, a second adjusting slide block slidingly connected to the first adjusting slide block left and right, and a second servo motor cylinder mounted on the first adjusting slide block for driving the second adjusting slide block to move left and right, wherein the angle adjusting motor is mounted on the second adjusting slide block.

The photovoltaic cell string gap adjusting device can switch the photovoltaic cell strings with front and rear positions corresponding to front and rear intervals and drive the photovoltaic cell strings to finely adjust the positions front and rear, left and right.

As a preferred implementation manner of the first aspect, the lifting frame is provided with two rows of ball springs which are oppositely arranged left and right, each row of ball springs is arranged front and back at equal intervals, the center distance between every two adjacent ball springs is equal to the preset center distance between every two adjacent photovoltaic cell strings on the photovoltaic module, and the left side and the right side of the translation frame are respectively provided with a clamping groove used for being matched with the ball springs.

The photovoltaic cell string gap adjusting device can improve the positioning accuracy of the front-back switching position of the translation frame, and improve the front-back left-right position adjusting accuracy and the angle adjusting accuracy of the photovoltaic cell string.

As a preferred embodiment of the first aspect, the photovoltaic cell string gap adjusting device of the present invention further includes an alarm, the lifting frame is provided with a plurality of installation cavities corresponding to each other one by one for installing ball springs, the ball springs include round balls which can extend into the installation cavities and are used for being matched with the clamping grooves, pressure sensors fixed in the installation cavities, and compression springs connecting the round balls and the pressure sensors, and the alarm and the pressure sensors are all in communication connection with the controller.

The photovoltaic cell string gap adjusting device can detect the condition that the translation frame is not moved in place and inform workers through the alarm.

As the preferred implementation of first aspect, adjusting part still includes the regulating plate with adjusting frame front and back sliding connection and installs the third servo electric cylinder that is used for driving the regulating plate back and forth movement on the adjusting frame, equidistant first rectangular through-hole that is provided with a plurality of left and right sides extension setting about the adjusting frame, the regulating plate is equipped with a plurality of second rectangular through-holes that set up with first rectangular through-hole position one-to-one, the second rectangular through-hole is inwards inclined from the front to the back, just the inclination of the contained angle of the central plane of the extending direction of second rectangular through-hole and the bilateral symmetry of a plurality of first rectangular through-holes increases gradually from interior to exterior, vacuum chuck upside all is equipped with the slide bar, slide bar lower part and first rectangular through-hole sliding connection and upper portion and the rectangular through-hole sliding connection of second.

The photovoltaic cell string gap adjusting device can enlarge the application range of an adjusting component.

As a preferred embodiment of the first aspect, the photovoltaic cell string gap adjustment device further comprises a positioning assembly, the positioning assembly comprises a second lifting cylinder, a positioning frame installed at the output of the second lifting cylinder, two first positioning blocks which are arranged at intervals in the front-back direction and are in sliding connection with the positioning frame, a first driving device installed on the positioning frame and used for driving the two first positioning blocks to be close to or far away from each other synchronously, two second positioning blocks which are arranged at intervals in the front-back direction and are in sliding connection with the positioning frame in the left-right direction, and a second driving device installed on the positioning frame and used for driving the two second positioning blocks to be close to or far away from each other synchronously, wherein the first positioning blocks are rotationally connected with a plurality of first positioning rollers which are arranged at intervals in the left-right direction and are used for propping against the front side or the rear side of the photovoltaic assembly, the second positioning blocks are rotationally connected with a plurality of second positioning rollers which are arranged at intervals in the front-back direction and are used for propping against the left side or the right side of the photovoltaic assembly, and the first driving device and the second driving device are in communication connection with a controller.

The photovoltaic cell string gap adjusting device can position the photovoltaic modules in the adjusting area of the conveyer belt.

In a second aspect, the present invention further provides a method for adjusting a photovoltaic cell string gap, where the photovoltaic cell string gap adjusting device according to the above first aspect includes the following steps:

step one, setting preset position parameters and preset angle parameters of a photovoltaic cell string in a controller;

step two, conveying the photovoltaic module with the plurality of photovoltaic cell strings placed on the upper side into an adjusting area by a conveying belt;

step three, the acquisition unit acquires image parameters of a plurality of photovoltaic cell strings on the upper side of the photovoltaic module in the calling area, and calculates position parameters to be adjusted and angle parameters to be adjusted of the photovoltaic cell strings;

step four, the controller controls the adjusting component to sequentially adjust the front, back, left and right positions and angles of a plurality of photovoltaic cell strings on the photovoltaic component according to the calculated position parameters to be adjusted and the angle parameters to be adjusted;

step five, conveying the photovoltaic modules in the adjustment area by using a conveying belt;

step six, returning to the step two.

The photovoltaic cell string gap adjustment method provided by the invention can identify the position parameters and the angle parameters to be adjusted of a plurality of photovoltaic cell strings on the photovoltaic module, and drive the adjustment module to sequentially adjust the front, back, left and right positions and angles of the plurality of photovoltaic cell strings on the photovoltaic module, so that the position offset of the photovoltaic cell strings on glass is reduced, the gaps among the photovoltaic cell strings are ensured, the influence of the photovoltaic cell strings during operation is avoided, and the quality of the photovoltaic module is improved.

As a preferred embodiment of the second aspect,

setting a preset position parameter and a preset angle parameter of the photovoltaic cell string and a position allowable error parameter and an angle allowable error parameter of the photovoltaic cell string in a controller;

in the third step, a position parameter to be adjusted and an angle parameter to be adjusted of the photovoltaic cell string are calculated, whether the position parameter to be adjusted of the photovoltaic cell string is smaller than or equal to a position allowable error parameter and the angle parameter to be adjusted of the photovoltaic cell string is smaller than or equal to an angle allowable error parameter are judged, and if yes, the fifth step is entered; if not, entering a step four;

in the fourth step, the adjusting component sequentially adjusts the front, back, left and right positions and angles of the photovoltaic cell strings on the photovoltaic component, and then returns to the third step.

The photovoltaic cell string gap adjustment method can improve the working efficiency of the photovoltaic cell string gap adjustment and ensure the gap adjustment precision of the photovoltaic cell string.

As a preferred embodiment of the second aspect, in step one, the controller is marked with a first category, a second category, a third category, a fourth category, and a fifth category;

step three, if the position parameter to be adjusted of the photovoltaic cell string is smaller than or equal to the position allowable error parameter and the angle parameter to be adjusted of the photovoltaic cell string is smaller than or equal to the angle allowable error parameter, adding one to the numerical value of the category one; if the position parameter to be adjusted of the photovoltaic cell string is larger than the position allowable error parameter and the angle parameter to be adjusted of the photovoltaic cell string is smaller than or equal to the angle allowable error parameter, adding one to the numerical value of the category II; if the position parameter to be adjusted of the photovoltaic cell string is smaller than or equal to the position allowable error parameter and the angle parameter to be adjusted of the photovoltaic cell string is larger than the angle allowable error parameter, adding one to the numerical value of the category III; if the position parameter to be adjusted of the photovoltaic cell string is larger than the position allowable error parameter and the angle parameter to be adjusted of the photovoltaic cell string is larger than the angle allowable error parameter, adding one to the numerical value of the category IV; if the photovoltaic cell strings on the same photovoltaic module need to be adjusted by the adjusting module more than twice, the numerical value of the category five is increased by one.

The photovoltaic cell string gap adjustment method can provide reference data for improving typesetting of the photovoltaic cell string and improving conveying of a photovoltaic module.

As a preferred embodiment of the second aspect, the left or right side corners of the cell panel on the photovoltaic module are provided with chamfers;

in the third step, the step of the method,

calculating actual central position parameters of the photovoltaic cell strings by acquiring opposite side positions of a plurality of cell panels of the same photovoltaic cell string, which are provided with two chamfer edges and one side edge, and the widths of the cell panels, and calculating position parameters to be adjusted by comparing the actual central position parameters of the photovoltaic cell strings with preset position parameters;

calculating actual angle parameters of the photovoltaic cell strings by acquiring position parameters of front sides and rear sides of a plurality of panels of the same photovoltaic cell string, and calculating angle parameters to be adjusted by comparing the actual angle parameters of the photovoltaic cell strings with preset angle parameters;

in the fourth step, the three-coordinate moving platform enables the rotation axis of the angle adjusting motor to coincide with the center position of the photovoltaic cell string to be absorbed and then absorbs the photovoltaic cell string.

The photovoltaic cell string gap adjustment method can simplify the flow of position adjustment and angle adjustment of the photovoltaic cell string.

Drawings

Fig. 1 is a schematic front view of a photovoltaic cell string gap adjustment apparatus in an embodiment of the present invention;

FIG. 2 is a schematic front view of the structure of an adjustment assembly in an embodiment of the present invention;

FIG. 3 is a schematic top view of a translation stage mounted on a lifting stage in accordance with an embodiment of the present invention;

FIG. 4 is an enlarged view at A in FIG. 3;

FIG. 5 is a schematic top view of the structure of the adjusting plate mounted on the adjusting frame according to the embodiment of the present invention;

FIG. 6 is a schematic top view of the structure of an adjusting bracket according to an embodiment of the present invention;

FIG. 7 is a schematic view of a vacuum chuck mounted on an adjusting frame and an adjusting plate according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of the wiring of a controller in an embodiment of the invention;

FIG. 9 is a schematic front view of a positioning assembly (photovoltaic assembly on a conveyor belt) according to an embodiment of the present invention;

FIG. 10 is a schematic top view of a positioning assembly (no photovoltaic assembly on a conveyor belt) in accordance with an embodiment of the present invention;

fig. 11 is a top view of a layout of strings of photovoltaic cells on a photovoltaic module on a glass sheet.

In the figure:

100. a frame;

200. a conveyor belt;

300. an adjustment assembly; 310. a three-coordinate mobile station; 311. a lifting frame; 312. a first lifting cylinder; 313. a translation frame; 314. a stroke cylinder; 315. a first adjustment slider; 316. a first servo electric cylinder; 317. a second adjustment slider; 318. a second servo electric cylinder; 319. a mounting cavity; 320. an angle adjusting motor; 330. an adjusting frame; 331. a first elongated through hole; 340. a vacuum chuck; 350. a ball spring; 351. round balls; 352. a pressure sensor; 353. a compression spring; 360. a clamping groove; 370. an adjustment plate; 371. a second elongated through hole; 380. a third servo electric cylinder; 390. a slide bar;

400. an acquisition unit;

500. a controller;

600. an alarm;

700. a positioning assembly; 710. a second lifting cylinder; 720. a positioning frame; 730. a first positioning block; 740. a first driving device; 750. a second positioning block; 760. a second driving device; 770. a first positioning roller; 780. and a second positioning roller.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention in any way.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 3, a photovoltaic cell string gap adjustment apparatus in an embodiment of the present invention includes a frame 100, a conveyor belt 200, an adjustment assembly 300, an acquisition unit 400, and a controller 500.

The frame 100 is provided with an adjustment area, which is not shown in the drawing, and the front, back, left and right positions and angles of a plurality of photovoltaic cell strings arranged at intervals on the photovoltaic module are adjusted in the adjustment area.

The conveyor belt 200 is used for conveying the photovoltaic module to or from the adjustment area, so as to realize loading and unloading of the photovoltaic module. And, the conveyor belt 200 directly transports the photovoltaic module from the adjustment area to the next process to weld the bus bar to the photovoltaic module.

The adjusting assembly 300 comprises a three-coordinate moving table 310 mounted on the frame 100, an angle adjusting motor 320 mounted at an output end of the three-coordinate moving table 310, an adjusting frame 330 mounted at an output end of the angle adjusting motor 320, and a row of vacuum chucks 340 mounted on the adjusting frame 330 at left and right intervals and used for sucking up or dropping down the photovoltaic cell strings; in practice, the three-coordinate moving table 310 can drive a row of vacuum chucks 340 mounted on the adjusting frame 330 to move up and down and to suck or put down a string of photovoltaic cells in cooperation with the vacuum chucks 340, when the string of photovoltaic cells is sucked up, the three-coordinate moving table 310 can move back and forth and left and right to adjust the front and back positions of the string of photovoltaic cells, and the angle of the adjusting frame 330 is changed by the angle adjusting motor 320 to change the angle of the string of photovoltaic cells. The number of the vacuum chucks 340 in a row is the same as the number of the panels in a string of photovoltaic cells, so that a plurality of vacuum chucks 340 can absorb a plurality of panels in a one-to-one correspondence.

The acquisition unit 400 is mounted on the frame 100 or the adjustment assembly 300 and is used for shooting image parameters of a plurality of photovoltaic cell strings of the photovoltaic assembly in the adjustment area; the figure shows the acquisition unit 400 mounted on the adjustment assembly 300. In practice, the acquisition unit 400 may be an industrial camera or a high-definition camera, and may be equipped with a photographing light source, and may be capable of photographing the upper side of the photovoltaic module and acquiring image parameters of a plurality of photovoltaic cell strings of the photovoltaic module.

The controller 500 is configured to read the image parameters captured by the capturing unit 400, calculate a position parameter to be adjusted and an angle parameter to be adjusted of the photovoltaic cell strings, and drive the adjusting component 300 to sequentially adjust the front, back, left and right positions and angles of the plurality of photovoltaic cell strings on the photovoltaic component. In practice, the controller 500 may be a controller 500 system or a central control device of the photovoltaic cell string gap adjustment device, so that an operator controls the photovoltaic cell string gap adjustment device to work, and the controller 500 is further provided with an image analysis program, which can read image parameters captured by the acquisition unit 400 and calculate a position parameter to be adjusted and an angle parameter to be adjusted of each photovoltaic cell string on the analysis photovoltaic module, and control the adjustment assembly 300 to sequentially adjust the front, rear, left and right positions and angles of a plurality of photovoltaic cell strings on the photovoltaic module according to the position parameter to be adjusted and the angle parameter to be adjusted of each photovoltaic cell string, so as to ensure that the gaps among the plurality of photovoltaic cell strings meet typesetting requirements.

According to the photovoltaic cell string gap adjusting device, the frame 100, the conveyor belt 200, the adjusting assembly 300, the acquisition unit 400 and the controller 500 are matched with each other, so that position parameters to be adjusted and angle parameters to be adjusted of a plurality of photovoltaic cell strings on the photovoltaic assembly can be identified, the adjusting assembly 300 is driven to sequentially adjust the front, back, left and right positions and angles of the plurality of photovoltaic cell strings on the photovoltaic assembly, the position offset of the photovoltaic cell strings on glass is reduced, the mutual gap between the photovoltaic cell strings is ensured, the influence of the photovoltaic cell strings during operation is avoided, and the quality of the photovoltaic assembly is improved.

As shown in fig. 2 and 3, the three-coordinate moving table 310 preferably includes a lifting frame 311 slidably connected to the frame 100 in the up-down direction, a first lifting cylinder 312 mounted on the frame 100 for driving the lifting frame 311 to move up and down, a translation frame 313 slidably connected to the lifting frame 311 in the up-down direction, a stroke cylinder 314 mounted on the lifting frame 311 for driving the translation frame 313 to move up and down, a first adjustment slide 315 slidably connected to the translation frame 313 in the up-down direction, a first servo motor cylinder 316 mounted on the translation frame 313 for driving the first adjustment slide 315 to move up and down, a second adjustment slide 317 slidably connected to the first adjustment slide 315 in the left-right direction, and a second servo motor cylinder 318 mounted on the first adjustment slide 315 for driving the second adjustment slide 317 to move in the left-right direction, wherein the angle adjustment motor 320 is mounted on the second adjustment slide 317.

In practice, the position parameters to be adjusted and the angle parameters to be adjusted of the plurality of photovoltaic cell strings on the photovoltaic module have smaller values. In actual working, the first lifting cylinder 312 drives the lifting frame 311 to switch positions up and down so that a row of vacuum chucks 340 can suck and put down a photovoltaic cell string; a plurality of photovoltaic cell strings are arranged on the photovoltaic module at intervals in the front-back direction, when the photovoltaic cell string is conveyed into an adjustment area of the conveyor belt 200 by the conveyor belt 200, the travel cylinder 314 drives the translation frame 313 to rapidly switch the positions in the front-back direction, so that a row of vacuum chucks 340 on the adjustment frame 330 are respectively switched to the positions above the photovoltaic cell strings arranged at intervals in the front-back direction in sequence, and preparation is made for adjusting the positions in the front-back direction, the left-right direction and the adjustment angles of the photovoltaic cell strings in sequence; the first servo electric cylinder 316 can drive the first adjusting slide block 315 to finely adjust the position back and forth to realize the back and forth fine adjustment of the position of the photovoltaic cell string, and the second servo electric cylinder 318 can drive the second adjusting slide block 317 to finely adjust the position left and right to realize the left and right fine adjustment of the position of the photovoltaic cell string; in addition, the angle adjusting motor 320 may also be a motor with a smaller step angle, so as to improve the angle adjusting accuracy of the photovoltaic cell string.

Specifically, as shown in fig. 3 and fig. 4, the lifting frame 311 is preferably provided with two rows of ball springs 350 that are oppositely disposed left and right, each row of ball springs 350 is disposed at equal intervals in front and rear, the center distance between two adjacent ball springs 350 in front and rear of each row is equal to the preset center distance between two adjacent photovoltaic cell strings in front and rear on the photovoltaic module, and the left and right sides of the translation frame 313 are respectively provided with a clamping groove 360 for being matched with the ball springs 350. When the translation frame 313 moves back and forth relative to the lifting frame 311, the lifting frame 311 is in rolling connection with the translation frame 313 through the ball springs 350, the translation frame 313 is ensured to move back and forth smoothly, when the stroke cylinder 314 drives the translation frame 313 to move back and forth to enable the row of vacuum suction cups 340 to move to the position and angle to be adjusted above the photovoltaic cell string, the stroke cylinder 314 stops driving the translation frame 313 to move, the balls of the ball springs 350 extend into the clamping grooves 360 and are matched with the clamping grooves 360, the front and back positions of the translation frame 313 are limited, the positioning precision of the front and back switching positions of the translation frame 313 is improved, and the front and back left and right position adjustment precision and angle adjustment precision of the photovoltaic cell string are improved.

It should be noted that, as shown in fig. 8, the photovoltaic cell string gap adjustment apparatus of the present invention further preferably includes an alarm 600, and in fact, the alarm 600 may be an alarm lamp or/and an alarm bell, and can notify a worker by means of light or/and sound; the lifting frame 311 is provided with a plurality of mounting cavities 319 in one-to-one correspondence with the ball springs 350, the ball springs 350 preferably comprise round balls 351 which can extend into the mounting cavities 319 and are used for being matched with the clamping grooves 360, pressure sensors 352 fixed in the mounting cavities 319 and compression springs 353 for connecting the round balls 351 with the pressure sensors 352, and the alarm 600 and the pressure sensors 352 are in communication connection with the controller 500. When the translation frame 313 moves to a desired position, the corresponding ball springs 350 on the left and right sides of the translation frame 313 correspondingly extend into the clamping grooves 360 on the left and right sides of the translation frame 313, and the acting force of the compression springs 353 on the tooth sensor is reduced to the minimum, which means that the translation frame 313 moves to the proper position. If the corresponding ball springs 350 on the left and right sides of the translation frame 313 cannot be correspondingly inserted into the clamping grooves 360 on the left and right sides of the translation frame 313 for a special reason, the controller 500 can acquire that the detected data of the corresponding pressure sensor 352 does not reach the minimum value yet, and the controller 500 controls the alarm 600 to work so as to inform the staff and control the adjusting assembly 300 to stop working, so that the staff can exclude the situation that the translation frame 313 is not moved in place.

Specifically, as shown in fig. 5, 6 and 7, in some embodiments, the adjusting assembly 300 further preferably includes an adjusting plate 370 slidably connected to the adjusting frame 330 in front-back direction and a third servo-electric cylinder 380 mounted on the adjusting frame 330 for driving the adjusting plate 370 to move in front-back direction, the adjusting frame 330 is provided with a plurality of left-right extending first elongated through holes 331 at equal intervals, the adjusting plate 370 is provided with a plurality of second elongated through holes 371 disposed in one-to-one correspondence with the first elongated through holes 331, the second elongated through holes 371 are inclined inwards from front to back, and the inclination of the included angle between the extending direction of the second elongated through holes 371 and the central plane of bilateral symmetry of the plurality of first elongated through holes 331 increases from inside to outside, that is, the second elongated through holes 371 on the left of the central plane of bilateral symmetry of the plurality of first elongated through holes 331 are inclined from front to back to right, and the second elongated through holes 371 on the right of the central plane of bilateral symmetry of the plurality of first elongated through holes 331 are inclined from front to back to left; the upper side of the vacuum chuck 340 is provided with a sliding rod 390, the lower part of the sliding rod 390 is in sliding connection with the first strip through hole 331, and the upper part of the sliding rod 390 is in sliding connection with the second strip through hole 371. Equidistant interval sets up about one row of vacuum chuck 340, the slide bar 390 lower part of a plurality of vacuum chuck 340 upside and a plurality of first rectangular through-hole 331 one-to-one sliding connection and a plurality of second rectangular through-hole 371 one-to-one sliding connection of slide bar 390 upper portion of a plurality of vacuum chuck 340, under the effect of first rectangular through-hole 331 and the rectangular through-hole 371 of second, left and right sides equidistant setting is kept all the time to a left row of vacuum chuck 340 when the regulation board 370 is slided back and forth to the electric jar 380 of third, make a row of vacuum chuck 340 can correspond and adsorb a plurality of panels of different left and right sides interval on the photovoltaic cell cluster in certain limit, increase the application scope of regulation subassembly 300.

Specifically, as shown in fig. 9 and 10, in some embodiments, a photovoltaic cell string gap adjustment apparatus of the present invention further preferably includes a positioning assembly 700, where the positioning assembly 700 includes a second lifting cylinder 710, a positioning frame 720 installed at an output of the second lifting cylinder 710, two first positioning blocks 730 disposed at intervals in front-back direction and slidingly connected to the positioning frame 720, a first driving device 740 installed on the positioning frame 720 for driving the two first positioning blocks 730 to synchronously approach or separate from each other, two second positioning blocks 750 disposed at intervals in front-back direction and slidingly connected to the positioning frame 720 in left-right direction, and a second driving device 760 installed on the positioning frame 720 for driving the two second positioning blocks 750 to synchronously approach or separate from each other, the first positioning blocks 730 are rotatably connected with a plurality of first positioning rollers 770 disposed at intervals in front-right direction and for abutting against the front side or the rear side of the photovoltaic module, the second positioning rollers 780 are rotatably connected with a plurality of second positioning rollers 780 disposed at intervals in front-back direction and for abutting against the left side or right side of the photovoltaic module, and the first driving device 780 are connected with the second driving device 760. In practice, the photovoltaic module is horizontally conveyed from front to back by using two conveyor belts 200 arranged at left and right intervals, two first positioning blocks 730 are arranged between the two conveyor belts 200 at front and back intervals, the left second positioning block 750 is positioned at the left side of the left conveyor belt 200, and the right second positioning block 750 is positioned at the right side of the right conveyor belt 200. Before the positioning assembly 700 works, the second lifting cylinder 710 drives the positioning frame 720 to move downwards to the lower position, and the upper side of the first positioning roller 770 and the upper side of the second positioning roller 780 are lower than the conveying surface of the conveying belt 200; when the positioning assembly 700 needs to work, the second lifting cylinder 710 drives the positioning frame 720 to move upwards to the upper position, the upper side of the first positioning roller 770 and the upper side of the second positioning roller 780 are higher than the upper side surface of the glass plate of the photovoltaic assembly, the lower side of the first positioning roller 770 and the lower side of the second positioning roller 780 are lower than the lower side surface of the glass plate of the photovoltaic assembly, the first driving device 740 drives the two first positioning blocks 730 to reduce the distance so that the plurality of first positioning rollers 770 respectively abut against the front side and the rear side of the glass plate to determine the front position and the rear position of the glass plate, and the second driving device 760 drives the two second positioning blocks 750 to reduce the distance so that the plurality of second positioning rollers 780 respectively abut against the left side and the right side of the glass plate to determine the left position and the right position of the glass plate, so as to play a role in the front, rear, left and right positions of the glass plate. It should be noted that, the first driving device 740 and the second driving device 760 may include a servo motor and a screw, and the screw is provided with a first threaded section and a second threaded section with equal leads and opposite rotation directions, and the first driving device 740 may drive the two first positioning blocks 730 to approach or separate from each other by equal distances through threaded connection between the two first positioning blocks 730 or the two second positioning blocks 750 and the second driving device 760 may drive the two second positioning blocks 750 to approach or separate from each other by equal distances.

The invention also provides a photovoltaic cell string gap adjustment method, which adopts the technical scheme, and comprises the following steps:

step one, setting preset position parameters and preset angle parameters of the photovoltaic cell strings in a controller 500;

step two, the conveyor belt 200 conveys the photovoltaic module with the plurality of photovoltaic cell strings placed on the upper side into an adjustment area;

step three, the acquisition unit 400 acquires image parameters of a plurality of photovoltaic cell strings on the upper side of the photovoltaic module in the calling area, and calculates position parameters to be adjusted and angle parameters to be adjusted of the photovoltaic cell strings;

step four, the controller 500 controls the adjusting component 300 to sequentially adjust the front, back, left and right positions and angles of a plurality of photovoltaic cell strings on the photovoltaic component according to the calculated position parameters to be adjusted and the angle parameters to be adjusted;

step five, the conveyor belt 200 conveys away the photovoltaic modules in the adjustment area;

step six, returning to the step two.

Through the steps, the position parameters to be adjusted and the angle parameters to be adjusted of the plurality of photovoltaic cell strings on the photovoltaic module can be identified, the adjusting module 300 is driven to sequentially adjust the front, back, left and right positions and angles of the plurality of photovoltaic cell strings on the photovoltaic module, the position offset of the photovoltaic cell strings on glass is reduced, the mutual gaps of the photovoltaic cell strings are ensured, the influence of the photovoltaic cell strings during operation is avoided, and the quality of the photovoltaic module is improved.

Specifically, in some embodiments, the photovoltaic cell string gap adjustment method is optimized.

In the first step, the controller 500 sets a preset position parameter and a preset angle parameter of the photovoltaic cell string and a position allowable error parameter and an angle allowable error parameter of the photovoltaic cell string;

in the third step, a position parameter to be adjusted and an angle parameter to be adjusted of the photovoltaic cell string are calculated, whether the position parameter to be adjusted of the photovoltaic cell string is smaller than or equal to a position allowable error parameter and the angle parameter to be adjusted of the photovoltaic cell string is smaller than or equal to an angle allowable error parameter are judged, and if yes, the fifth step is entered; if not, entering a step four;

in the fourth step, the adjusting assembly 300 sequentially adjusts the front, back, left and right positions and angles of the plurality of photovoltaic cell strings on the photovoltaic assembly, and then returns to the third step.

The position allowable difference parameter and the angle allowable error parameter are set, so that only the battery strings with the deviation exceeding the error range are regulated, and the working efficiency of regulating the gaps of the photovoltaic battery strings is improved; and the cell strings which are not adjusted in place are adjusted again, so that the gap adjustment precision of the photovoltaic cell strings is ensured.

More specifically, in some embodiments, the photovoltaic cell string gap adjustment method is again optimized.

In step one, the controller 500 identifies category one, category two, category three, category four, and category five.

Step three, if the position parameter to be adjusted of the photovoltaic cell string is smaller than or equal to the position allowable error parameter and the angle parameter to be adjusted of the photovoltaic cell string is smaller than or equal to the angle allowable error parameter, adding one to the numerical value of the category one; if the position parameter to be adjusted of the photovoltaic cell string is larger than the position allowable error parameter and the angle parameter to be adjusted of the photovoltaic cell string is smaller than or equal to the angle allowable error parameter, adding one to the numerical value of the category II; if the position parameter to be adjusted of the photovoltaic cell string is smaller than or equal to the position allowable error parameter and the angle parameter to be adjusted of the photovoltaic cell string is larger than the angle allowable error parameter, adding one to the numerical value of the category III; if the position parameter to be adjusted of the photovoltaic cell string is larger than the position allowable error parameter and the angle parameter to be adjusted of the photovoltaic cell string is larger than the angle allowable error parameter, adding one to the numerical value of the category IV; if the string of photovoltaic cells on the same photovoltaic module needs to be adjusted by the adjustment module 300 more than twice, the category five value is incremented by one.

It should be noted that, the first category corresponds to a photovoltaic cell string whose position and angle are not required to be adjusted, the second category corresponds to a photovoltaic cell string whose position and angle are not required to be adjusted, the third category corresponds to a photovoltaic cell string whose position and angle are not required to be adjusted, and the fourth category corresponds to a photovoltaic cell string whose position and angle are both required to be adjusted; category five corresponds to strings of photovoltaic cells that need to be adjusted more than twice. In the actual production process, the phenomena of normal category one, category two, category three and category four appear, and the influence on the gaps of the photovoltaic cell strings in the typesetting precision and the conveying process can be obtained by analyzing the probability of the distribution of the categories, so that reference data are provided for improving the typesetting of the photovoltaic cell strings and the conveying of the photovoltaic modules; the fifth category belongs to the problems that the adjustment precision of the adjustment assembly 300 is low, or the preset allowable difference parameter and the preset angle allowable error parameter are less, if the fifth category is too high, the problem needs to be found and solved, and the influence on the working efficiency of the photovoltaic cell string gap adjustment is avoided.

In fact, as shown in fig. 11, the left or right corners of the panels on the photovoltaic module are provided with chamfers, for which, in some embodiments, the photovoltaic cell string gap adjustment method is optimized.

In the third step, the step of the method,

calculating actual central position parameters of the photovoltaic cell strings by acquiring opposite side positions of a plurality of cell panels of the same photovoltaic cell string, which are provided with two chamfer edges and one side edge, and the widths of the cell panels, and calculating position parameters to be adjusted by comparing the actual central position parameters of the photovoltaic cell strings with preset position parameters;

calculating actual angle parameters of the photovoltaic cell strings by acquiring position parameters of front sides and rear sides of a plurality of panels of the same photovoltaic cell string, and calculating angle parameters to be adjusted by comparing the actual angle parameters of the photovoltaic cell strings with preset angle parameters;

in the fourth step, the three-coordinate moving stage 310 first makes the rotation axis of the angle adjusting motor 320 coincide with the center position of the photovoltaic cell string to be adsorbed and then adsorbs the photovoltaic cell string.

The influence of two angles on the left side or the right side of the panel on the image recognition of the photovoltaic cell string is reduced, the actual center position of the photovoltaic cell string is calculated, the rotation axis of the angle adjusting motor 320 is overlapped with the center position of the photovoltaic cell string to be adsorbed during adjustment, and the position adjustment and angle adjustment processes of the photovoltaic cell string are simplified.

The foregoing is merely illustrative of the present invention and is not intended to limit the scope of the invention, and various other modifications and variations may be made by those skilled in the art in light of the above teachings, all of which are intended to be within the scope of the appended claims.

Claims (10)

1. A photovoltaic cell string gap adjustment device is characterized by comprising

A frame provided with an adjustment area;

the conveying belt is used for conveying the photovoltaic module to the adjustment area or conveying the photovoltaic module away from the adjustment area;

the adjusting assembly comprises a three-coordinate moving table arranged on the frame, an angle adjusting motor arranged at the output end of the three-coordinate moving table, an adjusting frame arranged at the output end of the angle adjusting motor and a row of vacuum suckers which are arranged on the adjusting frame at left and right intervals and are used for sucking up or putting down the photovoltaic cell strings;

the acquisition unit is arranged on the frame or the adjusting component and used for shooting image parameters of a plurality of photovoltaic cell strings of the photovoltaic component in the adjusting area;

and the controller is used for reading the image parameters shot by the acquisition unit, calculating the position parameters to be adjusted and the angle parameters to be adjusted of the photovoltaic cell strings, and driving the adjustment assembly to sequentially adjust the front, back, left and right positions and angles of the plurality of photovoltaic cell strings on the photovoltaic assembly.

2. The photovoltaic cell string gap adjustment apparatus according to claim 1, wherein the three-coordinate moving stage includes a lift frame slidably connected to the frame up and down, a first lift cylinder mounted on the frame for driving the lift frame to move up and down, a translation frame slidably connected to the lift frame forward and backward, a stroke cylinder mounted on the lift frame for driving the translation frame to move forward and backward, a first adjustment slide block slidably connected to the translation frame forward and backward, a first servo motor cylinder mounted on the translation frame for driving the first adjustment slide block to move forward and backward, a second adjustment slide block slidably connected to the first adjustment slide block in a left-right direction, and a second servo motor cylinder mounted on the first adjustment slide block for driving the second adjustment slide block in a left-right direction, and the angle adjustment motor is mounted on the second adjustment slide block.

3. The photovoltaic cell string gap adjustment device according to claim 2, wherein the lifting frame is provided with two rows of ball springs which are oppositely arranged from left to right, each row of ball springs is arranged at equal intervals in front and back, the center distance between two adjacent ball springs in front and back of each row is equal to the preset center distance between two adjacent photovoltaic cell strings in front and back on the photovoltaic module, and clamping grooves for being matched with the ball springs are formed in the left side and the right side of the translation frame.

4. A photovoltaic cell string gap adjustment apparatus according to claim 3, further comprising an alarm, wherein the elevator is provided with a plurality of mounting cavities in one-to-one correspondence for mounting ball springs, the ball springs comprise round balls which can extend into the mounting cavities and are used for being matched with the clamping grooves, pressure sensors fixed in the mounting cavities, and compression springs for connecting the round balls with the pressure sensors, and the alarm and the pressure sensors are in communication connection with the controller.

5. The photovoltaic cell string gap adjusting device according to claim 1, wherein the adjusting assembly further comprises an adjusting plate which is connected with the adjusting frame in a front-back sliding manner and a third servo electric cylinder which is arranged on the adjusting frame and used for driving the adjusting plate to move back and forth, a plurality of first strip through holes which are arranged in a left-right equidistant manner are arranged on the adjusting frame in a left-right equidistant manner, a plurality of second strip through holes which are arranged in a one-to-one correspondence manner with the positions of the first strip through holes are arranged on the adjusting plate, the second strip through holes incline inwards from front to back, the inclination of an included angle between the extending direction of the second strip through holes and the central plane of bilateral symmetry of the plurality of first strip through holes increases gradually from inside to outside, sliding rods are arranged on the upper sides of the vacuum suction discs, and the lower parts of the sliding rods are connected with the first strip through holes in a sliding manner, and the upper parts of the sliding rods are connected with the second strip through holes in a sliding manner.

6. The photovoltaic cell string gap adjustment device according to claim 1, further comprising a positioning assembly, wherein the positioning assembly comprises a second lifting cylinder, a positioning frame installed at the output of the second lifting cylinder, two first positioning blocks which are arranged at intervals in the front-back direction and are in sliding connection with the positioning frame, a first driving device installed on the positioning frame and used for driving the two first positioning blocks to be close to or far away from each other synchronously, two second positioning blocks which are arranged at intervals in the front-back direction and are in sliding connection with the positioning frame in the left-right direction, and a second driving device installed on the positioning frame and used for driving the two second positioning blocks to be close to or far away from each other synchronously, the first positioning blocks are rotationally connected with a plurality of first positioning rollers which are arranged at intervals in the left-right direction and are used for propping against the front side or the rear side of the photovoltaic assembly, and the second positioning rollers which are arranged at intervals in the front-back direction and are used for propping against the left side or the right side of the photovoltaic assembly rotationally, and the first driving device and the second driving device are connected with the controller in a communication mode.

7. A photovoltaic cell string gap adjustment method, characterized by employing a photovoltaic cell string gap adjustment apparatus as claimed in any one of claims 1 to 6, comprising the steps of:

step one, setting preset position parameters and preset angle parameters of a photovoltaic cell string in a controller;

step two, conveying the photovoltaic module with the plurality of photovoltaic cell strings placed on the upper side into an adjusting area by a conveying belt;

step three, the acquisition unit acquires image parameters of a plurality of photovoltaic cell strings on the upper side of the photovoltaic module in the calling area, and calculates position parameters to be adjusted and angle parameters to be adjusted of the photovoltaic cell strings;

step four, the controller controls the adjusting component to sequentially adjust the front, back, left and right positions and angles of a plurality of photovoltaic cell strings on the photovoltaic component according to the calculated position parameters to be adjusted and the angle parameters to be adjusted;

step five, conveying the photovoltaic modules in the adjustment area by using a conveying belt;

step six, returning to the step two.

8. The method for adjusting the gap between strings of photovoltaic cells according to claim 7,

setting a preset position parameter and a preset angle parameter of the photovoltaic cell string and a position allowable error parameter and an angle allowable error parameter of the photovoltaic cell string in a controller;

in the third step, a position parameter to be adjusted and an angle parameter to be adjusted of the photovoltaic cell string are calculated, whether the position parameter to be adjusted of the photovoltaic cell string is smaller than or equal to a position allowable error parameter and the angle parameter to be adjusted of the photovoltaic cell string is smaller than or equal to an angle allowable error parameter are judged, and if yes, the fifth step is entered; if not, entering a step four;

in the fourth step, the adjusting component sequentially adjusts the front, back, left and right positions and angles of the photovoltaic cell strings on the photovoltaic component, and then returns to the third step.

9. The method of claim 8, wherein in step one, the first, second, third, fourth, and fifth categories are identified in the controller;

step three, if the position parameter to be adjusted of the photovoltaic cell string is smaller than or equal to the position allowable error parameter and the angle parameter to be adjusted of the photovoltaic cell string is smaller than or equal to the angle allowable error parameter, adding one to the numerical value of the category one; if the position parameter to be adjusted of the photovoltaic cell string is larger than the position allowable error parameter and the angle parameter to be adjusted of the photovoltaic cell string is smaller than or equal to the angle allowable error parameter, adding one to the numerical value of the category II; if the position parameter to be adjusted of the photovoltaic cell string is smaller than or equal to the position allowable error parameter and the angle parameter to be adjusted of the photovoltaic cell string is larger than the angle allowable error parameter, adding one to the numerical value of the category III; if the position parameter to be adjusted of the photovoltaic cell string is larger than the position allowable error parameter and the angle parameter to be adjusted of the photovoltaic cell string is larger than the angle allowable error parameter, adding one to the numerical value of the category IV; if the photovoltaic cell strings on the same photovoltaic module need to be adjusted by the adjusting module more than twice, the numerical value of the category five is increased by one.

10. The method for adjusting the gap between strings of photovoltaic cells according to claim 7,

chamfering is arranged at two corners of the left side or two corners of the right side of the battery plate on the photovoltaic module;

in the third step, the step of the method,

calculating actual central position parameters of the photovoltaic cell strings by acquiring opposite side positions of a plurality of cell panels of the same photovoltaic cell string, which are provided with two chamfer edges and one side edge, and the widths of the cell panels, and calculating position parameters to be adjusted by comparing the actual central position parameters of the photovoltaic cell strings with preset position parameters;

calculating actual angle parameters of the photovoltaic cell strings by acquiring position parameters of front sides and rear sides of a plurality of panels of the same photovoltaic cell string, and calculating angle parameters to be adjusted by comparing the actual angle parameters of the photovoltaic cell strings with preset angle parameters;

in the fourth step, the three-coordinate moving platform enables the rotation axis of the angle adjusting motor to coincide with the center position of the photovoltaic cell string to be absorbed and then absorbs the photovoltaic cell string.