KR101098357B1 - lay-up system and lay-up method for manufacturing solar cell module - Google Patents

Abstract

Lay-up system for manufacturing a solar cell module according to the present invention comprises a supply unit for supplying string cells in which the unit cells are connected in series; An alignment unit for aligning string cells; A first single conveying unit for conveying a string cell from said supply unit to said alignment unit; A work table unit in which the string cells aligned in the alignment unit are arranged, and a bussing operation for electrically connecting the arranged string cells is performed; A multi-conveying unit for collectively conveying the worktable unit bussed solar cell strings; And an assembly stage unit, on which the module front cover is located, on which the solar cell strings carried by the multi conveying unit are placed on the module front cover.

Solar cell, layup, alignment

Description

Lay-up system and lay-up method for manufacturing solar cell module

The present invention relates to a layup system and method capable of mass-producing solar cell modules with high throughput.

Generally, solar cells include crystalline solar cells using monocrystalline silicon or polycrystalline silicon, and thin film solar cells using amorphous silicon (amorphous silicon), CIGS (copper indium gallium selenium), CdTe (cadnium tellurium), and the like.

The solar cell module is a small assembly that encloses unit solar cells connected to each other in an environmentally resistant structure to completely protect the environment and has a specified output.

In the manufacturing process of the solar cell module, there is a layup process in which string cells connected in series with solar cells are arranged in a horizontal direction and stacked on the front cover of the module. Problems such as misalignment and misalignment occur.

As such, there is an increasing demand for a new layup system capable of efficiently mass-producing large-area solar cell modules at reasonable production costs.

The present invention provides a layup system and method for manufacturing a solar cell module that can minimize the number of workers.

In addition, the present invention provides a layup system and method for manufacturing a solar cell module capable of fast and reliable layup processing.

The present invention also provides a layup system and method for manufacturing a solar cell module capable of fast and stable alignment of string cells.

In addition, the present invention provides a work-up assembly of the bus strings string cells to the module front cover, and provides a lay-up system and method for manufacturing a solar cell module capable of inspecting the final connection of the string cells.

In addition, the present invention provides a layup system and method for manufacturing a solar cell module that can significantly reduce the installation space, and also reduce the working radius of the operator.

In addition, the present invention provides a layup system and method for manufacturing a solar cell module that can perform the inspection work by the operator doing the busting work.

The problem to be solved by the present invention is not limited thereto, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

The present invention is to achieve the above object, the lamination system of a solar cell module is a supply unit for supplying string cells in which the unit cells are connected in series; An alignment unit for aligning string cells; A first single conveying unit for conveying a string cell from said supply unit to said alignment unit; A work table unit in which the string cells aligned in the alignment unit are arranged, and a bussing operation for electrically connecting the arranged string cells is performed; A multi-conveying unit for collectively conveying the worktable unit bussed solar cell strings; And an assembly stage unit, on which the module front cover is located, on which the solar cell strings carried by the multi conveying unit are placed on the module front cover.

According to an embodiment of the present invention, the alignment unit includes: a tilt stage in which a string cell is placed; A first alignment member for aligning the string cells placed on the tilt stage in a longitudinal direction; And a second alignment member for aligning the string cells placed on the tilt stage in the width direction.

According to an embodiment of the present invention, the first alignment member may include a stopper positioned at a longitudinal alignment reference of the string cells; Pushing a string cell placed on the tilt stage to align one end of the string cell with the stopper; And a first linear driver for reciprocating the push in the longitudinal direction.

According to an embodiment of the present invention, the first alignment member controls the linear driving unit according to the length of the string cell to adjust the movement distance of the push.

According to an embodiment of the present invention, the first alignment member further includes a second linear driving unit for moving the stopper to an alignment reference position and a standby position away from the alignment reference position.

According to an embodiment of the present invention, the first alignment member comprises: a first linear driving part; And a push that is moved in the longitudinal direction by the first linear driver and presses one side of the string cell placed on the tilt stage.

According to an embodiment of the present invention, the first alignment member aligns the string cells by tilting the tilt stage in the longitudinal direction.

According to an embodiment of the present invention, the tilt stage further includes a sliding layer for improving the sliding property of the string cell.

According to an embodiment of the invention, the alignment unit further includes a hinge axis coupled to both ends in the longitudinal direction of the tilt stage.

According to an embodiment of the present invention, the second alignment member tilts the tilt stage about the hinge axis.

According to an embodiment of the present invention, the second alignment member is a hinge axis which is installed at both ends of the tilt stage in the longitudinal direction, the elevator is connected to the tilt stage so that the tilt stage is rotated by a predetermined angle about the hinge axis. It includes.

According to an embodiment of the present invention, the second alignment member aligns the string cells by tilting the tilt stage in the width direction.

According to an embodiment of the invention, the assembly stage unit comprises a transparent stage; It is installed on the top of the stage, and includes a conveyor belt for conveying the module front cover so that the module front cover is located on the top of the stage.

According to an embodiment of the present invention, the assembly stage unit further includes a lighting member for irradiating light for the function test of the string cells placed on the front cover of the module.

According to an embodiment of the invention, the lighting member is located below the stage.

According to an embodiment of the invention, the assembly stage unit is disposed on the edge of the stage, and further comprises a cover alignment member for aligning the front cover of the module.

According to an embodiment of the present invention, the assembly stage unit further includes a sag preventing member that prevents sagging of the front cover of the module.

According to an embodiment of the present invention, the deflection prevention member is moved to the edge of the stage when light is irradiated from the illumination member for the function test of the string cells placed on the front cover of the module.

According to an embodiment of the present invention, the supply unit includes a conveyor member for supplying trays containing string cells, wherein the first single conveying unit comprises: a plurality of first vacuum adsorption ports for sucking the string cells in a vacuum; And second vacuum adsorption ports for vacuum suctioning the tray containing the string cells from the supply unit.

Lay-up method for manufacturing a solar cell module for achieving the above object is a bussing step of arranging the string cells on the work table, and electrically connecting the arranged string cells; Collectively conveying the busted strings of the solar cells and loading them on the module front cover; And irradiating light for the function test of the string cells placed on the front cover of the module.

According to an embodiment of the present invention, the layup method further comprises aligning the string cells before arranging the string cells in the work table.

According to an embodiment of the invention, the layup method further comprises the step of performing a visual inspection of the operator before loading the solar cell strings on the module front cover.

According to an embodiment of the present invention, the visual inspection is performed while the solar cell strings are lifted and tilted from the work table.

According to an embodiment of the present invention, the bussing step fixes string cells in a vacuum to the work table.

According to the present invention, the trays in which the string cells are stored are automatically loaded and unloaded to have a special effect of reducing the number of workers and the rapid supply.

In addition, according to the present invention has a special effect that can be quickly and safely aligned without impacting the string cell.

In addition, according to the present invention, when the bussing the string cells are connected at both sides, only one worker has a special effect that the bussing operation is possible.

Further, according to the present invention, since the bussing operation is performed while the string cells are fixed in a vacuum in the work table, the string cell arrangement state is not disturbed.

In addition, according to the present invention, a stage in which the bussed string cells are assembled to the module front cover and a stage for the final connection inspection of the string cells may be configured as one stage, thereby greatly reducing the installation space, and a worker's working radius. Not only can it be reduced, but the worker who does the busing work can perform the inspection work.

In addition, the present invention not only can reduce the number of workers, process time and labor required for the layup process, but also has a special effect of significantly improving the productivity and quality of the solar cell module.

Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to FIGS. 1 to 22. The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the following embodiments. This embodiment is provided to more completely explain the present invention to those skilled in the art. Therefore, the shape of the elements in the drawings are exaggerated to emphasize a more clear description.

In the present embodiment, the solar cell module is a crystalline solar cell using monocrystalline silicon or polycrystalline silicon, a thin film solar cell using amorphous silicon (amorphous silicon), CIGS (copper indium gallium selenium), CdTe (cadnium tellurium), construction It may be an integrated module in which an outer wall material or a roof material used for a material or the like is integrated with a solar cell.

The manufacturing process of the solar cell module largely includes a tabber and stringer stage, a layup stage, a laminator stage and an inspection stage. Here, the taber and stringer step is a process of connecting the conductor ribbon so as to cross the front and rear to connect the solar cells (cells) in series. In the lay-up step, a series of solar cells (hereinafter referred to as string cells) are arranged horizontally from a stringer again to form a desired shape, and then a module front cover made of low iron tempered glass, EVA, etc. The process of lamination. The laminator step is a process of laminating the module rear cover on a string cell stacked on the module front cover and vacuum pressing them at a high temperature so that the solar cell module can withstand impact and waterproof. Finally, the module tester (Module Tester) step is to test whether the completed solar module is operating normally. The present invention provides a system and method for a layup process.

1 is a schematic diagram of a layup system for manufacturing a solar cell module according to an embodiment of the present invention. 2 is a view for schematically explaining a layup method for manufacturing a solar cell module according to an embodiment of the present invention.

Referring to FIG. 1, a layup system 1 for manufacturing a solar cell module according to an embodiment of the present invention includes a supply unit 100, a first single conveying unit 200, an alignment unit 300, and a second single. The conveying unit 200a, the work table unit 400, the multi conveying unit 500, and the assembly stage unit 600 are included.

Referring to FIG. 2, in the layup process of the layup system 1 having the above-described configuration, the supply of string cells ST to which the unit cells C are connected in series is provided. Arranging, arranging the sorted string cells in the work table 410, and a bussing step of electrically connecting the string cells arranged in the work table 410, and finally, the bussed string cells in the module front cover 10 Laminating to) and then inspecting.

The layup system 1 of the present invention provides an automated system in which the feeding, aligning, arranging, bussing, stacking and inspection of the string cells S-T are semi-automatic. Here, the bussing operation for electrically connecting the string cells may be performed by an operator.

(Supply unit)

3 is a front view showing a supply unit of a layup system according to an embodiment of the present invention. 4 is a perspective view showing a tray in which a string cell supplied from a supply unit is placed.

3 and 4, the supply unit 100 supplies the trays T in which the string cells S-C in which the unit cells are connected in series are placed. The supply unit 100 includes a loading conveyor unit 110, an unloading conveyor unit 120, and a tray buffer unit 130.

The loading conveyor unit 110 is installed adjacent to the same line as the tray buffer unit 130. The loading conveyor unit 110 receives the tray T from the outside and supplies the tray T to the tray buffer 130. The tray transfer from the loading conveyor unit 110 to the tray buffer unit 130 is performed by a diverter device 140 installed in the loading conveyor unit 110.

The string cell S-C is accommodated in the tray T. The string cells S-C are twelve unit cells C connected in series with each other by a conductor ribbon. The string cells S-C are accommodated in the tray T so that the back sides of the unit cells face upward.

Four trays T may be queued in the tray buffer unit 130. The tray buffer unit 130 conveys the tray T in a belt conveyor method. The string cells S-C placed in the tray T are supplied to the alignment unit 300 by the first transport unit 200. The empty tray T is chucked by the first transport unit 200 and transferred to the unloading conveyor unit 120. The unloading conveyor unit 120 is located above the loading conveyor unit 110. The empty tray T transferred to the unloading conveyor 120 is carried out to the outside.

The string cell SC is moved to the tray buffer 130 through the loading conveyor 110 in a state of being accommodated in the tray T, and then aligned by the first single conveying unit 20. Supplied by. In addition, the empty tray T is transferred to the unloading conveyor unit 120 by the first single conveying unit 200 while the string cells S-C are aligned in the alignment unit 300. In addition, two trays SC in which the string cells are stored are supplied from the loading conveyor unit 110 to the tray buffer unit 130, and the trays T of the tray buffer unit 130 are moved in the direction of the arrow. . In the present embodiment, a string cell S-C having twelve unit cells C connected in series is used.

(1st single conveying unit)

5 is a front view of the first single conveying unit, and FIG. 6 is a side view of the first single conveying unit.

5 and 6, the first single transfer unit 200 transfers the string cells SC from the supply unit 100 to the alignment unit 300, and transfers the empty tray T to the tray buffer unit 130. ) Is a unit for conveying to the unloading conveyor unit 120 from.

The first single conveying unit 200 includes a first running rail part 250 and a first running rail part 250 extending from an upper side of the alignment unit 300 to an upper side of the unloading conveyor unit 120 of the supply unit 100. It includes a first frame 202 to move in the first direction, a lifting unit 220 is installed in the first frame 202, the chucking unit 210 is moved in the vertical direction by the lifting unit 220 do.

The chucking unit 210 includes a port plate 212 installed in the longitudinal direction (second direction) of the tray T and 48 first vacuum adsorption ports 214 installed in two rows on the port plate 212 and 4. Second vacuum adsorption ports 216. Although not shown, it is obvious that the first and second vacuum adsorption ports 214 and 216 are connected to vacuum lines. The first vacuum adsorption ports 214 adsorb the string cells S-C in a vacuum. Four first vacuum adsorption ports are used in each of the unit cells C of the string cells S-C for the first vacuum adsorption ports 214. The second vacuum adsorption ports 216 are disposed at both ends of the port plate 212. The second vacuum suction ports 216 are larger in size than the first vacuum suction ports 214.

The chucking unit 210 is up and down by the elevating unit 220. The lifting unit 220 includes a motor 222, a ball screw 224 rotated by the motor 222, and two vertical guide parts 226. In the present embodiment, the first single conveying unit 200 is illustrated and described as conveying the tray T after the adsorption and fixing of the tray T by vacuum. However, the tray may be chucked and conveyed by a mechanical clamping method instead of the vacuum suction method. .

(Alignment unit)

7 is a perspective view of the alignment unit. 8 is a plan view of the alignment unit. 9A and 9B are front and side views of the alignment unit.

6 to 9B, the alignment unit 300 is a unit for aligning the string cells S-C. The alignment unit 300 may include a tilt stage 310 in which the string cells SC are placed, a first alignment member 320 in which the string cells SC placed in the tilt stage 310 are aligned in the longitudinal direction, and And a second alignment member 330 for aligning the string cells SC placed on the tilt stage 310 in the width direction.

The first alignment member 320 pushes the stopper 322 positioned at the longitudinal alignment reference of the string cell and the push cell aligning one end of the string cell to the stopper 322 by pressing the string cell placed on the tilt stage 310. ), The first linear drive unit 326 for reciprocating the push 324 in the longitudinal direction and the stopper 322 to move to the alignment reference position (see FIG. 10B) and the standby position away from the alignment reference position (see FIG. 10A). The second linear driving unit 328 is included. The stopper 322 is inserted into the first hole 312 formed in the tilt stage 310 to protrude to the upper surface of the tilt stage 310. The push 324 is inserted into the second hole 314 formed in the tilt stage 310 to protrude to the upper surface of the tilt stage 310.

In particular, the first alignment member 320 may adjust the alignment distance of the push 324 by controlling the first linear driver 326 according to the overall length of the string cell (S-C). To this end, the first linear driving unit 326 preferably uses a servo motor.

The second alignment member 330 is a tilt stage such that the hinge shaft 332 and the tilt stage 310 are installed at both ends of the tilt stage 310 in a longitudinal direction so that the tilt stage 310 is rotated by a predetermined angle about the hinge shaft 332. And a cylinder lift 334 connected to 310. As described above, in the present invention, the second alignment member 330 tilts the tilt stage 310 in the width direction so that the width alignment of the string cells S-C is performed.

Although not shown. The tilt stage 310 may be provided with a sliding surface coating on the surface, attaching a good sliding material, or installing a ball bearing to improve the sliding property of the string cell.

(Horizontal alignment)

10A and 10B are diagrams for describing a horizontal alignment process in an alignment unit.

As shown in FIG. 10A, the string cell is placed in the tilt stage 310 in a standby state in which the stopper 322 and the push 324 are moved in both directions. That is, the stopper 322 waits at the standby position by the second linear driver 328, and the push 324 waits at the standby position by the first linear driver 326.

Referring to FIG. 10B, when the string cell SC is placed in the tilt stage 310 between the stopper 322 and the push 324, the stopper 322 is moved to the alignment reference position, and the push 324 is removed. The linear drive unit 326 is moved in the stopper direction (indicated by the arrow). When the push 324 pushes one end of the string cell S-C in the alignment direction, the other end of the string cell S-C comes into contact with the stopper 322 to complete longitudinal alignment. The distance L between the push 324 and the stopper 322 is preferably equal to the total length of the string cell S-C. That is, the push 324 does not push the string cells S-C in the alignment direction unconditionally and is moved only by a predetermined moving distance so that the force is not applied to the string cells.

11 is a diagram illustrating an alignment state of a string cell including eleven unit cells. As shown in FIG. 11, the alignment of the string cells S-C having eleven unit cells is moved at a distance equal to the length of the string cell in which the push 324 consists of eleven unit cells.

22 shows another embodiment of an alignment unit.

The first alignment member 340 of the alignment unit illustrated in FIG. 22 aligns the string cells S-C by tilting the tilt stage 310 in the longitudinal direction. The first alignment member 340 includes a frame 348 supporting the tilt stage 310, a hinge portion 342 installed at one end of the frame 348, and an elevator 344 installed at the other end of the frame 348. It includes. The frame 348 is tilted about the hinge portion 342 by the lifting operation of the elevator 344 in the first alignment member 340. Therefore, the string cells S-C placed on the tilt stage 310 slide in the direction of the arrow, and the longitudinal alignment is performed.

(Vertical)

12A and 12B are diagrams for describing a longitudinal alignment process in the alignment unit.

As shown in FIG. 12A, the string cells S-C are placed in the tilt stage 310 in a horizontal state. In this case, the string cell is loaded in a state in which the longitudinal reference plane 316 is retracted backward. Referring to FIG. 12B, the tilt stage 310 on which the string cells S-C are placed is tilted while lifting the right side (which is the right side when the drawing is viewed) by the elevator 334 operation of the second alignment member 330. At this time, the longitudinal reference plane 316 is moved forward to the position for alignment. The string cells S-C slide to the left and are aligned with the longitudinal reference plane 316 of the tilt stage 310. The longitudinal reference plane 316 is longitudinally installed at the left edge of the tilt stage 310, and has a jaw at the top to prevent the string cell S-C from being pinched.

(2nd single conveying unit)

13 is a front view of a second single conveying unit.

Referring to FIG. 13, the second single conveying unit 200a is for conveying the string cells aligned in the alignment unit 100 to the work table unit 300.

The second single conveying unit 200a has a configuration substantially the same as that of the first single conveying unit 200. The only difference between the second single conveying unit 200a and the first single conveying unit is that the second vacuum suction pads for conveying the tray are omitted. The second single conveying unit 200a rides on the first traveling rail portion 250a and the first traveling rail portion 250a extending from the upper side of the alignment unit 300 to the upper side of the work table unit 400 in the first direction. It includes a first frame 202a moving to, the lifting unit 220a installed in the first frame 202a, the chucking unit 210a moved in the vertical direction by the lifting unit 220a.

The chucking unit 210a includes a port plate 212 installed in the longitudinal direction (second direction) of the tray T and 48 first vacuum adsorption ports 214 installed in two rows on the port plate 212. Include. Although not shown, the first vacuum adsorption ports 214 and 216 are connected to the vacuum lines. The first vacuum adsorption ports 214 adsorb the string cells S-C in a vacuum. The first vacuum adsorption ports 214 are four first vacuum adsorption ports per cell (C) of the string cell (S-C) is adsorbed and fixed in a vacuum for stable transport.

The chucking unit 210 is up and down by the elevating unit 220. The lifting unit 220 includes a motor 222, a ball screw 224 rotated by the motor 222, and two vertical guide parts 226.

(Work table unit)

14 is a perspective view of a work table.

As shown in FIG. 14, in the work table unit 400, six string cells S-c are arranged in a first direction, and a busing process of electrically connecting the arranged string cells is performed.

The work table unit 400 has a work table 410 larger than the width of the solar cell module, and the work table 410 vacuums the string cells SC conveyed and placed by the second single conveying unit 200a. It has a vacuum hole (412) for adsorbing. Busching work is done by the operator. The bussing operation is an operation in which a worker solders string cells S-C, and the work table 410 is preferably made of a metal material on its upper surface. On the other hand, since the bussing operation in the work table unit 400 proceeds in a state where the movement of the string cells S-C is limited, the positional shift of the string cells and the like during the bussing operation is prevented.

On the other hand, depending on the type of solar cell module it may be necessary to perform the bussing work at both ends of the string cells (S-C). In this case, the multi conveying unit 500 lifts string cells placed on the work table 410, rotates them 180 degrees, and puts them down on the work table 410 again. Thus, the operator can stay in one place and handle all of the bussing operations on both ends of the string cells.

(Multi conveying unit)

15 is a side view of the multi conveying unit. FIG. 16A is a diagram illustrating a state in which a multi broadcast unit lifts string cells subjected to busching from a work table, and FIG. 16B is a diagram illustrating a state in which the multi broadcast unit tilts string cells for visual inspection.

15 to 16B, the multi conveying unit 500 conveys the string cells SC that have been busched from the work table unit 400 to the assembly stage unit 600, and the string cells SC for visual inspection. ) Is a unit for tilting.

Visual inspection is a test for finding visual defects of the busted string cells (S-Cs), and looks for defects that may degrade or adversely affect the module's performance visually in bright lighting conditions. For example, cracks, warpage, presence of foreign objects or array disturbances, wiring defects, or other conditions that may affect the performance of the modules of the string cells (where the surface refers to the light incident surface of the cell). Take a look.

The multi conveying unit 500 includes a chucking member 520 for vacuum sucking the stringed string cells S-C. The chucking member 520 has six unit chucking units 510 for vacuum sucking six string cells S-C. Each of the unit chucking units 510 may include a port plate 512 installed in the length direction (second direction) of the string cell SC and 48 first vacuum adsorption ports 514 installed in two rows on the port plate 512. ) Although not shown, the first vacuum adsorption ports 514 are connected to the vacuum lines. The first vacuum adsorption ports 514 adsorb the twelve unit cells of the string cells S-C in a vacuum. The first vacuum adsorption ports 514 are fixed to four first vacuum adsorption ports per cell (C) of the string cell (S-C) by the vacuum adsorption for stable transport.

The six unit chucking units 510 are fixedly installed in the first frame 522. The first frame 522 is rotatably installed in the second frame 502. The second frame 522 is provided with a tilt member 530 for tilting the chucking member 520. As shown in FIG. 16B, the tilt member 530 tilts the chucking member 520 at an angle (preferably 50 degrees) so that an operator can visually inspect the string cells vacuum-absorbed by the chucking member 520.

The second frame 502 is installed in the third frame 504 through the vertical rotation shaft 503. The rotation member 505 is connected to the vertical rotation shaft 503, and the second frame 502 is rotated about the rotation shaft 503 while the rotational force of the rotation member 505 is transmitted to the rotation shaft 503. The rotating member 505 is used when the busing operation is to be performed at both ends of the string cells S-C. That is, when the bussing operation for one end of the string cells placed on the work table 410 is completed, the 180 degree direction is changed by the multi-carrier unit 500 for the bussing operation for the other end of the string cells. That is, the multi conveying unit 500 rotates 180 degrees while lifting the string cells from the work table 410 and puts it back on the work table 410. Thus, the operator can stay in one place and handle all of the bussing operations on both ends of the string cells.

The third frame 504 is mounted to the fourth frame 506 to be elevated. The elevating member 540 is installed in the fourth frame 506. The fourth frame 506 is moved in the first direction along the running rail portion 550 extending upward.

The lifting member 540 lifts the third frame 504. The elevating member 540 includes a motor 542, a ball screw 544 rotated by the motor 542, and two vertical guide parts 546.

The elevating member 540 pulls down the third frame 504 so that the chucking member 520 can chuck the busted string cells S-C placed on the work table unit 400. In addition, the lifting member 540 raises the third frame 504 when the chucking member 520 vacuum-adsorbs the stringed string cells. The tilt member 530 tilts the chucking member 520 for a predetermined time for visual inspection. After the visual inspection is completed, the busted string cells S-C are stacked on the module front cover positioned in the assembly stage unit 600 by the multi conveying unit 500.

(Assembly stage unit)

17 is a perspective view of the assembly stage unit. 18 is a plan view of the assembly stage unit. FIG. 19 is a side view of the assembly stage unit seen in the lateral direction shown in FIG. 18.

17 to 19, the assembly stage unit 600 includes a transparent stage 610, a lighting member 620 installed inside the stage, conveyor belts 630 installed on the stage, and a stage 610. The first alignment unit 640 and the second alignment unit 650 are installed on the edge.

The assembly stage unit 600 is disposed adjacent to the conveyor conveyance path 30 to which the module front cover 10 is conveyed. The conveyor conveying path 30 includes a roller conveyor 32 including conveying rollers for conveying the module front cover 10 and a diverting device for conveying the module front cover 10 to the stage of the assembly stage unit. (34).

Loading and unloading of the module front cover between the assembly stage unit 600 and the conveyor conveyance path 30 is carried out to the conveyor belt 630 of the diverter device 34 and the assembly stage unit 600 installed on the conveyor conveyance path 30. Is made by

The conveyor belts 630 position the module front cover brought in from the conveyor conveyance path 30 on the stage 610, and convey the module front cover 10 on which the string cells SC are stacked from the stage 610. It is for carrying out to the furnace 30. The conveyor belts 630 are driven by the belt driver 632. The belt driver 632 includes a rotation shaft 636 that is rotated by the motor 634 and the motor 632 and provides a rotational force connected to the three conveyor belts.

The stage 610 is formed in a rectangular box shape having a wider top plate than the front cover of the module. The stage 610 has a frame 612 forming an edge, in which the structures supporting the first and second alignment parts 640 and 650, the conveyor belts 630, and the belt driver 632 are installed. do. The upper plate 614 of the stage 610 is made of a transparent material, and a plurality of lighting members 620 are installed therein. On the other hand, the lower plate 616 of the stage 610 is provided with a blowing fan 618 for forcibly cooling the internal space.

The lighting member 620 irradiates light to inspect the electrical connection state of the string cells S-C placed on the module front cover 10. That is, an ammeter (not shown) is connected to the output terminals of the busted string cells SC placed on the module front cover 10, and then the string cell SC is connected to the lighting member 620 installed inside the stage 610. Lights them. At this time, if the current is measured by the ammeter, the unit cells constituting each string cell, the conductor ribbon connecting the unit cells, and the connecting portion connecting the respective string cells to determine whether there is a defect such as disconnection. Done. As such, the layup system 1 of the present invention can be modified because it checks the electrical connection state and the like in the layup step performed before laminating.

The stage 610 has a first side parallel to the conveyor conveyance path 30, a second side, and a third side and a fourth side connecting the first side and the second side, and the first alignment unit 540 has It is installed on the first side, the third side and the fourth side. The second alignment unit 550 is installed on the second side.

The second alignment unit 550 has a fixing pin 552. In addition, the first alignment unit 640 is positioned on the transport passage of the module front cover 10. Thus, the alignment pins 542 of the first alignment unit 540 are up and down so as not to collide with the module front cover 10 being transferred, and are moved back and forth for alignment of the module front cover 10. Although not shown, the first alignment unit 540 includes a first cylinder for moving the alignment pin 542 up and down, and a second cylinder for moving the alignment pin 542 forward and backward.

20A to 20E are views for explaining a processing process in an assembly stage unit.

Referring to FIG. 20A, the module front cover 10 is conveyed from the conveyor conveyance path 30 to the stage 610. Referring to FIG. 20B, the module front cover 10 positioned on the stage 610 is aligned by the first alignment units 540 and the second alignment units 550. When the alignment of the module front cover 10 is completed, the stringed string cells S-C are conveyed by the multi conveying unit 500 and stacked on the module front cover 10 (see FIG. 20C). An ammeter (not shown) is connected to the output terminals of the busted string cells SC placed on the front cover 10 of the module, and then the string cells SC are illuminated by the lighting member 620 installed inside the stage 610. Check the electrical connection state of the string cells. The inspection is completed, and the module front cover in which the string cells are stacked is taken out to the conveyor conveyance path (see FIG. 20D).

21 is a plan view showing the assembly stage unit having the deflection preventing member of the module front cover.

As shown in FIG. 21, the assembly stage unit 600a has the same configurations as the assembly stage unit 600 mentioned above. However, the assembly stage unit 600a illustrated in FIG. 21 further includes a sag preventing member 660 that prevents sagging of the module front cover 10.

The sag prevention member 660 is installed at the left and right sides of the stage 610 with respect to the center. The deflection prevention member 660 is rotated so that it can be unfolded or folded. The sag prevention member 660 supports the module front cover 10 until the string cells S-C are placed on the module front cover 10. The sag prevention member 660 is moved to be folded to the edge of the stage 610 when light is irradiated from the lighting member 620 for the functional inspection of the string cells S-C.

1 is a schematic diagram of a layup system for manufacturing a solar cell module according to an embodiment of the present invention.

2 is a view for schematically explaining a layup process for manufacturing a solar cell module according to an embodiment of the present invention.

3 is a front view showing a supply unit of a layup system according to an embodiment of the present invention.

4 is a perspective view showing a tray in which a string cell supplied from a supply unit is placed.

5 is a front view of the first single conveying unit.

6 is a side view of the first single conveying unit.

7 is a perspective view of the alignment unit.

8 is a plan view of the alignment unit.

9A and 9B are front and side views of the alignment unit.

10A and 10B are diagrams for describing a horizontal alignment process in an alignment unit.

11 is a diagram illustrating an alignment state of a string cell including eleven unit cells.

12A and 12B are diagrams for describing a longitudinal alignment process in the alignment unit.

13 is a front view of a second single conveying unit.

14 is a perspective view of a work table.

15 is a side view of the multi conveying unit.

FIG. 16A is a diagram illustrating a state in which a multi-casting unit lifts bus cells of strings processed from a work table.

16B is a diagram illustrating a state in which the multi-casting unit tilts string cells for visual inspection.

17 is a perspective view of the assembly stage unit.

18 is a plan view of the assembly stage unit.

FIG. 19 is a side view of the assembly stage unit seen in the lateral direction shown in FIG. 18.

20A to 20D are views for explaining a processing process in an assembly stage unit.

21 is a plan view showing the assembly stage unit having the deflection preventing member of the module front cover.

22 is a view showing an alignment unit of another embodiment.

Explanation of symbols on the main parts of the drawings

100: supply unit 200: first single conveying unit

300: alignment unit 400: work table unit

500: multi-conveying unit 600: assembly stage unit

Claims (25)

In a layup system for manufacturing solar module: A supply unit for supplying string cells in which unit cells are connected in series; An alignment unit for aligning string cells; A first single conveying unit for conveying a string cell from said supply unit to said alignment unit; A work table unit in which the string cells aligned in the alignment unit are arranged, and a bussing operation for electrically connecting the arranged string cells is performed; A multi conveying unit for collectively conveying the solar cell string cells subjected to the work table unit bussing operation; And Lay-up system for manufacturing a solar cell module, characterized in that the module front cover is located, the solar cell string cells conveyed by the multi-conveying unit comprises an assembly stage unit is placed on the module front cover. The method of claim 1, The alignment unit A tilt stage in which the string cell is placed; A first alignment member for aligning the string cells placed on the tilt stage in a longitudinal direction; And Layup system for manufacturing a solar cell module, characterized in that it comprises a second alignment member for aligning the string cells placed on the tilt stage in the width direction. 3. The method of claim 2, The first alignment member A stopper positioned on the longitudinal alignment of the string cells; A push to press a string cell placed on the tilt stage to align one end of the string cell with the stopper; And Layup system for manufacturing a solar cell module comprising a first linear drive for reciprocating the push in the longitudinal direction. The method of claim 3, The first alignment member Adjusting the push distance of the push by controlling the first linear driving unit according to the length of the string cell, Lay-up system for manufacturing a solar cell module, characterized in that it further comprises a second linear driving unit for moving the stopper to the alignment reference position and the standby position away from the alignment reference position. 3. The method of claim 2, The first alignment member A first linear driver; And Lay-up system for manufacturing a solar cell module, characterized in that it comprises a push that is moved in the longitudinal direction by the first linear driving portion, the pressure pressing one side of the string cell placed on the tilt (tilt) stage. 3. The method of claim 2, The first alignment member Laying system for manufacturing a solar cell module, characterized in that to align the string cells by tilting the tilt stage in the longitudinal direction. 3. The method of claim 2, The second alignment member Hinge shafts installed at both ends of the tilt stage in a longitudinal direction; And a lifter coupled to the tilt stage such that the tilt stage is rotated at an angle about the hinge axis. 3. The method of claim 2, The second alignment member Laying system for manufacturing a solar cell module, characterized in that to align the string cells by tilting the tilt stage in the width direction. The method of claim 1, The work table unit Lay-up system for manufacturing a solar cell module, characterized in that it comprises a work table arranged with the string cells and having vacuum holes for suction fixing the string cells in a vacuum. The method of claim 1, The multi conveying unit A chucking member for vacuum sucking the string cells arranged in the work table unit; Layup system for manufacturing a solar cell module, characterized in that it comprises a tilt (tilt) member for tilting the chucking member. The method of claim 10, The multi conveying unit Lay-up system for manufacturing a solar cell module, characterized in that it further comprises a rotating member for rotating the chucking member to change the direction of the string cells being bussed in the work table unit. The method of claim 1, The assembly stage unit Transparent stage; Layup system for manufacturing a solar cell module, characterized in that it is installed on top of the stage, the conveyor belt conveying the module front cover so that the module front cover is located on the top of the stage. The method of claim 12, The assembly stage unit Lay-up system for manufacturing a solar cell module, characterized in that it further comprises a lighting member for irradiating light for the function test of the string cells placed on the front cover of the module. The method of claim 13, The lighting member is a lay-up system for manufacturing a solar cell module, characterized in that located under the module front cover placed on the stage. The method of claim 12, The assembly stage unit Lay-up system for manufacturing a solar cell module disposed on the edge of the stage, further comprising a cover alignment member for aligning the front cover of the module. The method of claim 13, The assembly stage unit Lay-up system for manufacturing a solar cell module, characterized in that it further comprises a sag prevention member for preventing the sag of the module front cover. The method of claim 16, The sag prevention member Lay-up system for manufacturing a solar cell module, characterized in that moved to the edge of the stage when light is irradiated from the illumination member for the functional inspection of the string cells placed on the front cover of the module. The method of claim 1, The supply unit A conveyor member for supplying trays containing string cells, The first single conveying unit A plurality of first vacuum adsorption ports for adsorbing the string cell with a vacuum; And Lay-up system for manufacturing a solar cell module, characterized in that it comprises a second vacuum adsorption ports for vacuum-adsorbing the tray containing the string cell from the supply unit. delete In the layup method for manufacturing a solar cell module: A bussing step of arranging the string cells on the work table and electrically connecting the arranged string cells; Collectively conveying the busted strings of solar cells and loading them into the module front cover; And Lay-up method for manufacturing a solar cell module comprising the step of irradiating light for the function test of the string cells placed on the front cover of the module. 21. The method of claim 20, The layup method And aligning string cells before arranging string cells on the work table. 21. The method of claim 20, The layup method Lay-up method for manufacturing a solar cell module, characterized in that further comprising the step of performing a visual inspection of the operator before loading the string cells on the front cover of the module. The method of claim 22, The visual inspection is a layup method for manufacturing a solar cell module, characterized in that the string cells are lifted from the work table in a tilted state. 21. The method of claim 20, The bussing step Lay-up method for manufacturing a solar cell module, characterized in that the string cells are fixed to the work table in a vacuum. 21. The method of claim 20, The bussing step Lay-up method for manufacturing a solar cell module, characterized in that for changing the direction of the string cells to the bussing both ends of the string cells.

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