TWI574819B - Laminating system and laminating method using the same - Google Patents

Description

Lamination system and lamination method using the same

The present invention relates to a laminating system, and more particularly to a laminating system for laminating articles to a laminate film by heat and pressure and a lamination method using the laminating system.

The present application claims the benefit of the Korean Patent Application No. 2009-0058948, filed on Jun. 30, 2009, which is hereby incorporated by reference.

In general, a solar cell module is completed by forming a protective film by a lamination method to have a laminate film having durability on a solar cell as an object. Although the protective film is attached to the solar cell by using a heating and pressurizing process, it is difficult to keep the pressure and temperature uniform during the procedure. As a result, bubbles can be interposed between the protective film and the solar cell and the adhesion characteristics between the protective film and the solar cell can be deteriorated due to bubbles.

Accordingly, the present invention is directed to a lamination system and a lamination process using the lamination system that substantially obviates one or more of the problems due to limitations and disadvantages of the prior art.

It is an object of the present invention to provide a laminating system and a lamination method using the same, wherein the manufacturing efficiency and productivity are improved by transferring a plurality of articles simultaneously from the loading member to the laminating box, A laminate comprising a plurality of laminators simultaneously laminates the plurality of articles with a laminate film and simultaneously transfers the plurality of articles from the laminate to an unloading member output.

Another object of the present invention is to provide a laminating system and a laminating method using the same, wherein a laminating box includes a plurality of laminating machines each including an upper body and a lower body, and the moving distance is up and down The body above the plurality of laminators is moved to optimize.

Another object of the present invention is to provide a laminating system and a laminating method using the laminating system, wherein a plurality of laminating machines are respectively disposed on a plurality of platforms, and a faulty person in the plurality of laminating machines is capable Selectively repair and replace.

Another object of the present invention is to provide a laminating system and a laminating method using the same, wherein the expansion of the pressing member at the central portion of the protective film is initialized and the expansion is expanded toward the boundary region The article is uniformly laminated with the protective film without generating bubbles.

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described, a laminating system includes a plurality of laminating machines that perform a lamination process on a plurality of articles, among the plurality of laminating machines Each includes an upper body and a lower body; a laminate box including a plurality of platforms, the plurality of laminators being independently disposed on the plurality of platforms; and a lifting member that moves the plurality of laminates up and down An upper body of each of the machines for separating and combining the upper body and the lower body.

In another aspect, a lamination method using a lamination system includes: a first step of loading a plurality of articles on a loading component; moving up each of the plurality of laminating machines by using a lifting component The body separates the upper body and the lower body of each of the plurality of laminating machines, respectively transfers the plurality of articles from the loading component to the plurality of laminating machines, and moves the upper body downward by using the lifting component Combining the upper body and the lower body and a second step of performing a laminating process on the plurality of articles, the plurality of laminating machines are independently disposed on a plurality of platforms of a laminated box; and the plurality of objects are from the plurality of The third step of transferring the laminator to an unloading component.

The above general description and the following detailed description are to be considered as illustrative and illustrative

The embodiments of the present invention are described in the accompanying drawings, which are included to provide a further understanding of the invention.

Reference is now made in detail to the embodiments illustrated in the drawings. Wherever possible, the same reference numerals are used to refer to the

1 is a view showing a solar cell module used as an article of a lamination system according to an embodiment of the present invention.

In FIG. 1, the solar cell module 10 includes a substrate 12, a first electrode 14, a semiconductor layer 16, a second electrode 18, an adhesive layer 20, and a protective film 22. The substrate 12 may include glass, and the first electrode 14 on the substrate 12 may include a transparent conductive material such as indium tin oxide (ITO) and zinc tin oxide (ZTO). Although not shown in FIG. 1, the semiconductor layer 16 on the first electrode 14 may include a first conductive semiconductor layer of a positive (p) type semiconductor material, an active layer of a pure semiconductor material, and a first (n) type semiconductor material. A second conductive semiconductor layer. The first semiconductor layer and the second semiconductor layer may be formed to obtain an ohmic contact between the active layer and one of the first electrode 14 and the second electrode 18. The second electrode 18 on the semiconductor layer 16 may include a metal material such as aluminum (Al). The substrate 12, the first electrode 14, the semiconductor layer 16, and the second electrode 18 may be defined as a solar cell.

The adhesive layer 20 is interposed between the second electrode 18 and the protective film 22 for attaching the second electrode 18 and the protective film 22. Forming the protective film 22 on the adhesive layer 20 for preventing the deterioration of the solar cell module 10 and maintaining the solar cell module when the solar cell module 10 is repeatedly used in an extreme situation with high temperature and high humidity for a long period of time 10 durability. The protective film 22 may include glass. The protective film 22 can be attached to the second electrode 18 by the intervening adhesive layer 20. In another embodiment, the adhesive layer and the protective film may be sequentially formed on an opposite substrate, and the second electrode may be formed on the protective film. The opposite substrate having the second electrode may be attached to the substrate 12 having the semiconductor layer 16. The adhesive layer 20 may comprise a copolymer such as ethylene vinyl acetate (EVA). After the sheet-shaped adhesive layer 20 is disposed between the second electrode 18 and the protective film 22, the second electrode 18 and the protective film 22 can be attached to each other by heat and pressure. In another embodiment, the adhesive layer 20 can be formed by a coating method using a liquid phase material.

The first conductive semiconductor layer of the p-type semiconductor material of the semiconductor layer 16 and the active layer of the pure semiconductor material and the second conductive semiconductor layer of the n-type semiconductor material constitute a positive-negative-negative (PIN) junction layer. When light is transferred to the PIN junction layer via the substrate 12 and the first electrode 14, minority carriers in the active layer are excited and the excited minority carriers are passed through the first conductive semiconductor layer and the second conductive semiconductor layer. The first electrode 14 and the second electrode 18 are diffused. The minority carriers that diffuse across the PIN junction layer of the semiconductor layer 16 create a voltage difference between the first electrode 14 and the second electrode 18, thereby generating an electromotive force. The electromotive force can be extracted via a line (not shown) connected to the first electrode 14 and the second electrode 18.

2 is a perspective view showing a lamination system in accordance with an embodiment of the present invention.

In FIG. 2, lamination system 100 includes a loading component 32, a laminate box 26, and an unloading component 34. A plurality of solar cell modules 10 are transferred from the loading unit 32 to the lamination box 26, and a plurality of solar cell modules 10 laminated in the lamination box 26 are transferred from the lamination box 26 to the unloading unit 34. The laminate box 26 includes a plurality of laminators 24 for attaching the protective film 22 (Fig. 1) to the second electrode 18 (Fig. 1) by heat and pressure using the adhesive layer 20 (Fig. 1).

Loading component 32 includes loading conveyor 38, loading cassette 40, and loading elevator 36. The loading conveyor 38 includes a plurality of rollers and sequentially transfers a plurality of solar battery modules 10 having the adhesive layer 20 and the protective film 22 disposed thereon to the loading cassette 40 from the outside. The loading cassette 40 can be moved up and down by loading the elevator 36.

The loading cassette 40 can simultaneously transfer a plurality of solar battery modules 10 to the laminated box 26. The loading cassette 40 includes a plurality of loading supports 42 and a plurality of first conveyors (not shown) formed in the plurality of loading supports 42 respectively. A plurality of solar battery modules 10 are respectively disposed on the plurality of loading supports 42 , and the plurality of first conveyors respectively transfer the plurality of solar battery modules 10 to the laminated box 26 . Although not shown in FIG. 2, each of the plurality of loading supports 42 can include a first sensing member for detecting alignment of each of the plurality of solar modules 10. Each of the plurality of first conveyors can include two axes of rotation and a belt that is rotated by the two axes of rotation.

When the loading cassette 40 is moved downward by the loading elevator 36 such that the uppermost loading support 42 has the same height as the loading conveyor 38, the solar module 10 is loaded by the conveyor 38 and the upper loading support 42. The operation of the first conveyor is transferred to the uppermost loading support 42. Then, the loading cassette 40 is sequentially moved upward by the loading elevator 36 and the other solar battery modules 10 are sequentially transferred to the uppermost loading support 42 by the operation of the loading conveyor 38 and each of the first conveyors. The other loading support 42 is below. Accordingly, the plurality of loading supports 42 are sequentially aligned from the uppermost loading support 42 to have the same height as the loading conveyor 38, and the plurality of solar battery modules 10 are sequentially loaded into the plurality of loading boxes 40. The support member 42 is loaded.

When the loading cassette 40 is aligned with the lamination box 26 such that the plurality of loading supports 42 have the same height as the plurality of pedestals 50, respectively, the plurality of solar cell modules 10 are supported by the first conveyor of the loading cassette 40 The operation of the susceptor conveyor 64 of the laminate box 26 is simultaneously transferred from the loading cassette 40 to the lamination box 26.

3 is a cross-sectional view showing a laminating machine of a laminating system according to an embodiment of the present invention, and FIGS. 4A to 4C are cross-sectional views showing a laminating method according to an embodiment of the present invention. 5 is a perspective view showing a laminated box of a laminating system according to an embodiment of the present invention, and FIG. 6 is an exploded perspective view showing a stage of a laminated box of a laminating system according to an embodiment of the present invention. 7 is a perspective view showing a lifting member of a laminating system according to an embodiment of the present invention, and FIG. 8 is a perspective view showing a power transmitting pin of a laminating system according to an embodiment of the present invention, and FIG. 9 is a view An enlarged perspective view of a projection and power transmission pin of a lamination system in accordance with an embodiment of the present invention.

As shown in FIG. 5, the laminate box 26 includes a plurality of platforms 90 and a lifting member 28. A plurality of laminators 24 are respectively disposed on the plurality of stages 90, and the upper body 44 of the plurality of laminating machines 24 is lifted up and down by the lifting member 28. As shown in FIG. 6, the platform 90 includes a chassis 130 and four struts 132 at the corners of the chassis 130 to accommodate a laminator 24 having a rectangular shape. The laminator 24 is disposed on the chassis 130 and the four struts 132 support the other upper platforms 90.

As shown in FIG. 5, a plurality of stages 90 and a plurality of laminators 24 are alternately disposed and a support plate 134 for supporting the lifting member 28 is formed on the uppermost platform 90. As shown in FIG. 6, since it is not necessary to separate the space between adjacent platforms 90, the chassis 130 may have a grid shape and may open a side portion of the platform 90.

As shown in FIG. 3, the laminating machine 24 of the laminated box 26 includes an upper body 44, a lower body 46, a base 50, and a pressing member 52. The upper body 44 and the lower body 46 are combined with each other to provide an expansion space for the pressing member 52, and the pressing member 52 is disposed in the expansion space. The susceptor 50 is formed on the lower body 46 and the solar cell module 10 is disposed on the susceptor 50. Although not shown in FIG. 3, a second sensing member for detecting the alignment of the solar cell module 10 may be formed in each of the upper body 44 and the lower body 46.

In addition, a sealing member 54, such as an O-ring, is formed between the upper body 44 and the lower body 46. During the lamination process for the solar cell module 10 in which the protective film 22 is attached to the second electrode 18 (Fig. 1) by heating and pressing the adhesive layer 20, due to the mass of the upper body 44 Pressure is applied to the sealing member 54 and the expansion space 48 is shielded to the outside by the sealing member 54.

The first exhaust hole 56 and the second exhaust hole 58 may be formed in the upper body 44 and the lower body 46, respectively, to obtain a vacuum state or an atmospheric state of the expansion space 48. In addition, at least one protrusion 116 for lifting the upper body 44 is formed on a side surface of the upper body 44. For example, two protrusions 116 can be formed on each of the two opposing side surfaces of the upper body 44. The protrusion 116 includes a horizontal portion 116a and a vertical portion 116b. As shown in FIG. 9, the power transmission pin 108 of the lifting member 28 disposed under the projection 116 moves the upper body 44 up and down by the operation of the lifting member 28 such that the upper body 44 and the lower body 46 can be separated and combined with each other. The vertical portion 116b of the projection 116 prevents the power transmission pin 108 from coming off.

As shown in FIG. 5, the laminated box 26 has a first surface and a second surface facing the loading member 32 and the unloading member 34, and a third surface and a fourth portion between the first surface and the second surface, respectively. surface. Two protrusions 116 may be formed on each of the two opposite side surfaces of the upper body 44 corresponding to the third and fourth surfaces of the laminate box 26. For example, two protrusions 116 may be formed on the upper edge portion of each of the two opposite side surfaces of the upper body 44.

The pressing member 52 may be disposed at an intermediate portion of the expansion space 48. The pressing member 52 includes an upper plate 52a and a lower plate 52b which are combined with each other parallel to each other and at a boundary region thereof. The pressing member 52 has an air bag shape including a through hole 62 for injecting or extracting air. The through hole 62 may be coupled to the third exhaust hole 60 in the upper body 44. A heater 66 for transferring heat to the adhesive layer 22 and the protective film 20 during the lamination process is formed in the susceptor 50.

Further, a susceptor conveyor 64 for transferring the solar cell module 10 is formed on the susceptor 50. The pedestal conveyor 64 includes a first rotating shaft 80 and a second rotating shaft 82 that face the loading cassette 40 and the unloading box 68, respectively, and a belt 84 that is rotated by the first shaft 80 and the second shaft 82. The base 50 is disposed between the first shaft 80 and the second shaft 82, and the solar cell module 10 is disposed on the belt substantially corresponding to the base 50. For example, the belt may comprise glass wool Teflon and may have a thickness of about 0.2 mm.

The upper body 44 and the lower body 46 of the laminator 24 are combined and separated from each other to provide a path for the solar cell module 10 and an expansion space 48 for the lamination process. As shown in Figure 5, for the purpose of combining and separating the upper body 44 from the lower body 46, the laminate box 26 includes a lifting member 28 that simultaneously moves up and down a plurality of platforms 90 (each having a laminating machine 24) And a plurality of laminators 24 above the body 44.

The susceptor 50 and the solar cell module 10 are heated by a heater 66 to a predetermined temperature for the lamination process. Further, the expansion space 48 is evacuated through the first exhaust hole 56 and the second exhaust hole 58 to have a vacuum state, and the pressurizing member 52 is expanded by injecting air through the third exhaust hole 60. As a result, the protective film 22 and the second electrode 18 are attached to each other by heating and pressing the adhesive layer 20.

The adhesive layer 20 can comprise a copolymer such as ethylene vinyl acetate (EVA), and the temperature and pressure of the lamination procedure can be about 140 ° C and about 0.5 Torr, respectively. When the solar cell module 10 has a horizontal length of about 2200 mm and a vertical length of about 2600 mm, attaching the protective film 22 and the second electrode 18 by heating and pressing the adhesive layer 20 can take about 15 minutes to about 16 minute. The time for attaching the protective film 22 and the second electrode 18 by heating and pressurization may vary depending on the size of the solar cell module 10 and the materials used for the protective film 22 and the adhesive layer 20.

The pressing member 52 may include a yoke rubber. Since air is injected into the pressing member 52 with the expansion space 48 evacuated to a vacuum state, the pressing member 52 can be expanded in a relatively short time. The expansion procedure of the pressing member 52 is shown in Figures 4A-4C. As shown in FIG. 4A, when the expansion space 28 is evacuated to a vacuum state and air is initially injected into the pressing member 52, the pressing member 52 is expanded at its central portion and the expanded portion of the pressing member 52 is contact-protected. The membrane 22 is pressurized. As shown in FIG. 4B, when air is continuously injected into the pressing member 52, the expanded portion of the pressing member 52 is expanded toward the boundary region of the pressing member 52 to cause the expanding portion to contact and pressurize the protective film 22. As shown in FIG. 4C, the pressing member 52 is continuously expanded such that the expanded portion of the pressing member 52 can cover the side portion of the solar cell module 10.

When expanded, the pressing member 52 has a size that covers a side portion of the solar cell module 10. For example, when the solar cell module 10 has a horizontal length of about 2200 mm and a vertical length of about 2600 mm, the pressing member 52 can have a horizontal length of about 2700 mm and a vertical length of about 3100 mm. As a result, the side portion of the pressing member 52 can be elongated from the side portion of the solar cell module 10 by about 250 mm.

Since the pressing member 52 starts to expand and contact at the central portion thereof and the expanded portion of the pressing member 52 expands from the central portion to the boundary region, generation of air bubbles between the protective film 22 and the second electrode 18 is prevented, and the protective film 22 is prevented. The second electrode 18 is firmly attached to each other by the adhesive layer 20. After the lamination process is completed, the upper body 44 and the lower body 46 of each laminator 24 are separated from each other, and the plurality of solar cell modules 10 are simultaneously transferred to the unloading member 34 by the operation of the susceptor conveyor 64.

In FIGS. 3 and 4A to 4C, the pressing member 52 includes an upper plate 52a and a lower plate 52b which are parallel to each other and combined with each other at a boundary region thereof, and the pressing member 52 has an airbag shape including A through hole 62 for injecting or extracting air. In another embodiment, the pressing member 52 can comprise a single plate. When the pressing member 52 of the single plate is disposed in the expansion space 58 to divide the expansion space 58 into the upper portion and the lower portion, the upper portion and the lower portion may have an atmospheric state and a vacuum state, respectively, so that it may be performed by the pressing member 52. Lamination process.

As shown in FIG. 7, the lifting member 28 includes: a first power transmission shaft 102 on the laminate box 26; two of the second power transmission shafts 104 connected to the first power transmission shaft 102; Four of the third power transmission shafts 106 of the power transmission shaft 104; a plurality of power transmission pins 108 connected to the third power transmission shaft 106; a motor 110 that generates a driving force; a drive shaft 112; and a third power transmission shaft Four screws 128 at the end of 106. The drive shaft 112, the first power transmission shaft 102, the second power transmission shaft 104, and the third power transmission shaft 106 may be defined as a power transmission member.

The motor 110 is coupled to the first power transmission shaft 102 via a drive shaft 112 that is perpendicular to the first power transmission shaft 102 and a first gearbox 114. One end of the drive shaft 112 is coupled to a central portion of the first power transmission shaft 102 via a first gear case 114. Each end of the first power transmission shaft 102 is coupled to a central portion of each of the second power transmission shafts 104 via a second gearbox 118. In addition, each end of each of the second power transmission shafts 104 is connected to an end portion of each of the third power transmission shafts 106 via a third gear case 120. The end portion of each of the third power transmission shafts 106 includes a threaded screw hole (not shown), and a screw 128 fixed to the bottom surface of the equipment laminate 26 is insertable into each of the third power transmission shafts 106. Screw hole. As a result, the third power transmission shaft 106 moves up and down in accordance with the rotation of the third power transmission shaft 106 with respect to the fixing screw 128.

The driving force of the motor 110 is transferred to the first power transmission shaft 102 perpendicular to the drive shaft 112 via the drive shaft 112 and the first gear case 114, whereby the first power transmission shaft 102 rotates. The rotational power of the first power transmission shaft 102 is transferred to the second power transmission shaft 104 perpendicular to the first transmission shaft 102 via the second gear case 118, whereby the second power transmission shaft 104 rotates. In addition, the rotational power of the second power transmission shaft 104 is transferred to the third power transmission shaft 106 perpendicular to the second power transmission shaft 104 via the third gear case 120, whereby the third power transmission shaft 106 rotates.

Since the third power transmission shaft 106 connected to the fixing screw 128 rotates, the third power transmission shaft 106 moves up and down. Since the first power transmission shaft 102 and the second power transmission shaft 104 are fixed to the upper portion of the laminated box 26, the first power transmission shaft 102 and the second power transmission shaft 104 pass the first power even at the third power transmission shaft 106. The transmission shaft 102 and the second power transmission shaft 104 do not move up and down when the driving force moves up and down. The plurality of power transmission pins 108 connected to the third power transmission shaft 106 and the upper body 44 of each laminator 24 connected to the plurality of power transmission pins 108 via the projections 116 move up and down. As a result, the upper body 44 is separated and combined with the lower body 46 by the driving force of the motor 110.

Although the upper body 44 and the lower body 46 are separated and combined with each other, an error may occur because the gap between the laminating machines 24 is different from the gap between the power transmission pins 108. For the purpose of error adaptation, when the upper body 44 and the lower body 46 are combined with each other, the horizontal portion 116a of the protrusion 116 may be spaced apart from the power transmission pin 108.

The first gear case 114 is disposed at a central portion of the upper surface of the laminated box 26. The upper surface of the laminate box 26 may have a rectangular shape having long sides and short sides. The first power transmission shaft 102 passes through the first gear case 114 and may be disposed parallel to the long side of the upper surface and corresponds to a central portion of the short side of the upper surface. The first power transmission shaft 102 and the second power transmission shaft 104 are parallel to the upper surface of the laminated box 26. The second power transmission shaft 104, which is perpendicular to the first power transmission shaft 102, may be parallel to the short side of the upper surface and may correspond to the relatively short side of the upper surface. The third power transmission shaft 106 is disposed parallel to the corner side of the laminated box 26. Power transmission pin 108 is parallel to each protrusion 116 and is disposed below horizontal portion 116a of each protrusion 116.

As shown in FIG. 8, the power transmission pin 108 includes a bracket 126, a combined portion 122, and a support portion 124. The bracket 126 has a cylindrical shape and the third power transmission shaft 106 is inserted into the bracket 126. The combination portion 122 is combined with the bracket 126, and the support portion 124 coupled to the combination portion 122 supports the protrusion 116 of the upper body 44. The support portion 124 protrudes from the combined portion 122 to the outside.

As shown in FIG. 5, the first power transmission shaft 102 and the second power transmission shaft 104 are fixed to an upper portion of the laminated box 26 and rotated to transfer the driving force of the motor 110 to the third power transmission shaft 106. Further, the third power transmission shaft 106 moves up and down in accordance with the rotation thereof.

After the body 44 and the lower body 46 are separated from each other by the upward movement of the lifting member 28 above the laminating machine 24, the solar cell module 10 is transferred from the loading cassette 40 and loaded on the base 50 of the laminating machine 24. Next, the upper body 44 and the lower body 46 of the laminating machine 24 are combined with each other by the downward movement of the lifting member 28. The pressure due to the mass of the upper body 44 is applied to the sealing member 54 and the expansion space 48 between the upper body 44 and the lower body 46 is shielded to the outside by the sealing member 54.

The separation upper body 44 and the lower body 46 are separated from each other by a predetermined gap distance so that the solar cell module 10 can be transferred from the loading member 32 and transferred to the unloading member 34. In addition, since a plurality of laminators 24 are independently disposed on a plurality of stages and a plurality of upper bodies 44 are simultaneously moved up and down, the moving distance of the upper body 44 is optimized. As a result, the processing time for transferring and transferring the solar cell module 10 from the loading member 32 to the unloading member 34 is reduced. In addition, since a plurality of laminators 24 are independently disposed on a plurality of stages, the defective laminator among the plurality of laminating machines 24 is selectively repaired or replaced.

Referring to FIG. 2, the unloading component 34 of the laminating system 100 includes an unloading bin 68, an unloading elevator 37, and an unloading conveyor 70. The plurality of solar battery modules 10 laminated in the laminate box 26 with the protective film 22 are simultaneously transferred to the unloading box 68, and the unloading box 68 is moved up and down by the unloading elevator 37. The unloading conveyor 70 includes a plurality of rollers and sequentially transfers a plurality of solar battery modules 10 from the unloading box 68 to the outside.

The unloading box 68 includes a plurality of unloading supports 72 and a plurality of second conveyors (not shown) formed in the plurality of unloading supports 72, respectively. A plurality of solar battery modules 10 are respectively disposed on a plurality of unloading support members 72, and the plurality of second conveyors respectively transfer a plurality of solar battery modules 10 from the laminated box 26. Each of the plurality of second conveyors can include two rotating shafts and a belt that is rotated by the two rotating shafts. Although not shown in FIG. 2, each of the plurality of unloading supports 72 can include a third sensing member for detecting alignment of each of the plurality of solar modules 10.

When the unloading box 68 is aligned with the lamination box 26 such that the plurality of unloading supports 72 have the same height as the plurality of pedestals 50, respectively, the plurality of solar cell modules 10 are transported by the susceptor of the lamination box 26. The operation of the second conveyor of the machine 64 and the unloading box 68 is simultaneously transferred from the lamination box 26 to the unloading box 68.

In addition, when the unloading box 68 is moved downward by the unloading elevator 37 such that the uppermost unloading support 72 has the same height as the unloading conveyor 70, the solar battery module 10 is second by the uppermost unloading support 72. The operation of the conveyor and the unloading conveyor 70 is transferred to the outside. Next, the unloading box 68 is sequentially moved upward by the unloading elevator 37 and the other solar battery modules 10 located in the other unloading supports 72 below the uppermost unloading support 72 are unloaded by each of the second conveyors. The operation of the conveyor 70 is sequentially transferred to the outside. Therefore, the plurality of unloading supports 72 are sequentially aligned from the uppermost unloading support 72 to have the same height as the unloading conveyor 70, and a plurality of solar battery modules 10 are sequentially loaded on the unloading conveyor 70, So that a plurality of solar battery modules 10 can be sequentially transferred to the outside.

When a plurality of solar cell modules 10 are sequentially transferred from the loading conveyor 38 to a plurality of laminating machines 24 of the lamination box 26 and a plurality of laminating machines 24 from the lamination box 26 are sequentially transferred to the unloading conveyor At 70 o'clock, the laminating process required a relatively long processing time. In the laminating system 100 in accordance with the present invention, a plurality of solar cell modules 10 are sequentially transferred from the loading conveyor 38 to a plurality of loading supports 42 of the loading cassette 40 and a plurality of unloading supports 72 from the unloading box 68. The transfer conveyor 70 is sequentially transferred while a plurality of solar battery modules 10 are laminated with the protective film 22 in a plurality of laminators 24 of the laminate 26. In addition, the plurality of solar battery modules 10 are simultaneously transferred from the plurality of loading supports 42 of the loading cassette 40 to the plurality of laminating machines 24 of the lamination box 26 and simultaneously transferred from the plurality of laminating machines 24 of the lamination box 26 to A plurality of unloading supports 72 of the unloading box 68 are unloaded. As a result, the processing time for the lamination process is reduced and the manufacturing efficiency and productivity are improved.

The plurality of laminators 24 of the lamination box 26, the plurality of loading supports 42 of the loading cassette 40, and the plurality of unloading supports 72 of the unloading cassettes 68 may have the same number of each other. For example, the plurality of laminators 24, the plurality of loading supports 42 and the plurality of unloading supports 72 can have a number 2 to 15 based on the loading step and the unloading step.

The processing time for the lamination process can range from about 15 minutes to about 20 minutes. During the lamination process of about 15 minutes to about 20 minutes, a plurality of solar cell modules 10 are sequentially transferred from the outside to the loading cassette 40 via the loading conveyor 38 and sequentially from the unloading box 68 via the unloading conveyor 70. Transfer to the outside. After the lamination process is completed, a plurality of solar cell modules 10 are simultaneously transferred from the loading cassette 40 to the lamination box 26 and simultaneously transferred from the lamination box 26 to the unloading box 68.

For the purpose of transferring a plurality of solar cell modules 10, the loading cassette 40, the lamination box 26, and the unloading box 68 can be configured such that a plurality of loading supports 42, a plurality of laminating machines 24, and a plurality of unloading supports 72 Have the same height as each other. In addition, the laminate box 26 is disposed between the loading cassette 40 and the unloading box 68 such that the first surface of the laminated box 26 faces the loading cassette 40 and the second surface opposite the first surface of the laminated box 26 faces the unloading Box 68.

Figure 10 is a view showing a lamination method using a laminating system according to an embodiment of the present invention.

In FIG. 10, the laminating method includes a step st10 of transferring a plurality of solar cell modules 10 from the outside to the loading cassette 40; transferring a plurality of solar battery modules 10 from the loading cassette 40 to the lamination box 26 and at the layer The step st20 of performing the lamination process in the press box 26; and the step st30 of transferring the plurality of solar cell modules 10 from the lamination box 26 to the unloading box 68.

Step st10 includes: step st101 of forming the adhesive layer 20 and the protective film 22 on each of the plurality of solar battery modules 10; step st102 of placing the plurality of solar battery modules 10 on the loading conveyor 38; And a step st103 of transferring the plurality of solar battery modules 10 from the loading conveyor 38 to the plurality of loading supports 42 of the loading cassette 40 by the upward and downward movement of the loading cassette 40.

In step st102, after the loading cassette 40 is moved downward by the loading elevator 36 and the uppermost loading support 42 is aligned with the loading conveyor 38 to have the same height as the loading conveyor 38, the solar battery module 10 is placed in Loading on conveyor 38. In step st103, the solar cell module 10 is transferred to the uppermost loading support 42 by the operation of the loading conveyor 38 and the first of the uppermost loading supports 42. In addition, the loading cassette 40 is sequentially moved upward by the loading elevator 36 and all other solar battery modules 10 are transferred to the uppermost loading support 42 by the operation of the loading conveyor 38 and each of the first conveyors. All other loading supports 42 underneath.

Step st20 includes: step ST201 for separating the upper body 44 and the lower body 46 by the lifting member 28 for loading the plurality of solar battery modules 10; and a plurality of loading support members 42 of the loading box 40 and the plurality of laminated boxes 26 Step st202 of aligning the pedestals 50 with each other; step st203 of transferring the plurality of solar battery modules 10 from the loading support 42 of the loading cassette 40 to the plurality of laminating machines 24 of the lamination box 26; by the lifting member 28 a step st204 of combining the upper body 44 and the lower body 46; a step 205 of evacuating the expansion space 48 and expanding the pressing member 52 by injecting air; a step st206 of heating the plurality of susceptors 50 by the heater 66; a step ST207 of applying the protective film 22 to the second electrode 18 by the pressure bonding layer 20, a step st208 of performing heat treatment on the plurality of solar battery modules 10, a step st209 of cooling the plurality of solar battery modules 10, and an expansion space 48 The step st210 of ventilating and contracting the pressing member 52 by extracting air; and the step st211 of separating the upper body 44 and the lower body 46 by the lifting member 28 for unloading the plurality of solar battery modules 10 are performed.

In step st202, the plurality of loading supports 42 of the loading cassette 40 are respectively aligned with the plurality of pedestals 50 of the plurality of laminating machines 24 of the lamination box 26 such that the plurality of loading supports 42 have a plurality of bases The seat 50 has the same height. In step st203, the plurality of solar battery modules 10 are simultaneously self-loaded from the plurality of loading cassettes 40 by the operation of the first conveyor in the plurality of loading supports 42 and the base conveyor 64 in the plurality of laminating machines 50. The loading supports 42 are transferred to a plurality of pedestals 50 of the laminate box 26. The alignment of the plurality of solar cell modules 10 is detected by the second sensing member. When the plurality of solar cell modules 10 are misaligned, the second sensing member detects misalignment and the positions of the plurality of solar cell modules 10 are corrected. After the step st203, the plurality of solar battery modules 10 for the laminating process are transferred from the outside to the loading cassette 40.

In step st204, the expansion space 48 is defined by the combination of the upper body 44 and the lower body 46 (the pressing member expands in the expansion space 48). In step st205, the expansion space 48 is evacuated via the first exhaust hole 56 and the second exhaust hole 58 of the upper body 44 and the lower body 46 to have a vacuum state, and the pressurizing member 52 is passed through the third exhaust. The hole 60 is infused with air to expand so that the pressing member having the shape of the airbag can be expanded at its central portion. The expansion space 48 may have a pressure of about 0.5 Torr and the air injected into the pressing member 52 may have a pressure of about 5 kg/cm ³ .

When the expansion space 48 is evacuated to a vacuum state and air is injected into the pressing member 52, the central portion of the pressing member 52 expands and contacts the protective film 22. Subsequently, air is continuously injected into the pressing member 52, and the expanded portion of the pressing member 52 is expanded from the central portion to the boundary region to cause the expanded portion to contact and pressurize the protective film 22. Since the expanded portion of the pressing member 52 extends from the central region to the boundary region, air bubbles are prevented from being generated between the protective film 22 and the second electrode 18, and the protective film 22 and the second electrode 18 are firmly secured by the adhesive layer 20. Attached to each other. In addition, the pressing member 52 is continuously expanded such that the expanded portion of the pressing member 52 can cover the side portion of the solar cell module 10.

In step st206, the heater 66 heats each of the susceptors 50. For example, each pedestal 50 can have a temperature of about 140 °C. In step st207, the protective film 22 and the second electrode 18 are maintained by evacuation of the expansion space 48, the expansion of the pressing member 52, and heating of each of the susceptors 50 to a temperature of about 140 ° C for about 10 minutes. They are attached to each other via the adhesive layer 20 for about 15 minutes. In step st208, heat treatment is performed on the plurality of solar battery modules 10. For example, heater 66 can be set to a temperature of about 120 °C, and expansion space 48 can have a temperature of about 120 °C for about 5 minutes to about 10 minutes. Heat treatment is performed for firmly adhering the protective film 22 and the second electrode 18 via the adhesive layer 20.

In step st209, the heater 66 is set to a temperature of about 100 ° C and a plurality of solar battery modules 10 are cooled. The temperature of the heater 66 is maintained at about 100 ° C to reduce the heating time for the expansion space 48 in the subsequent lamination process. In step st210, the expansion space 48 is ventilated via the first exhaust hole 56 and the second exhaust hole 58 of the upper body 44 and the lower body 46 to have an atmospheric state and to draw air through the third exhaust hole 60. The balloon-shaped pressing member 52 is contracted.

In step st211, the upper body 44 and the lower body 46 are separated by the lifting member 28 to form an output gate for unloading the plurality of solar battery modules 10 from the laminated box 26 and a plurality of solar battery modules. 10 is loaded to the input gate of the laminate box 26. After the step st211, the plurality of solar battery modules 10 are transferred from the loading cassette 40 to the laminated box 26 and the step st20 for the laminating process is repeated.

Step st30 includes: step 301 of aligning the plurality of pedestals 50 of the plurality of laminators 24 of the lamination box 26 with the plurality of unloading supports 72 of the unloading box 68; laminating the plurality of solar cell modules 10 from the lamination Step la302 of transferring the plurality of laminators 24 of the cassette 26 to the plurality of unloading supports 72 of the unloading box 68; and moving the plurality of solar battery modules 10 from the unloading box 68 by the upward and downward movement of the unloading box 68 The plurality of unloading supports 72 are transferred to the step st303 of the unloading conveyor 70.

In step st301, the plurality of pedestals 50 of the plurality of laminating machines 24 of the lamination box 26 are respectively aligned with the plurality of unloading supports 72 of the unloading box 68, so that the plurality of pedestals 50 have a plurality of unloadings The support members 72 have the same height. In step st302, a plurality of solar battery modules 10 are simultaneously self-laminated from the stacking box 26 by operation of the base conveyor 64 of the plurality of laminators 50 and the second conveyor of the plurality of unloading supports 72. A plurality of pedestals 50 are transferred to a plurality of unloading supports 72 of the unloading box 68.

In step st303, after the unloading box 68 is moved downward by the unloading elevator 37 and the uppermost unloading support 72 is aligned with the unloading conveyor 70 to have the same height as the unloading conveyor 70, with the uppermost unloading support The operation of the second conveyor and the unloading conveyor 70 in 72 transfers the solar battery module 10 from the uppermost unloading support 72 to the unloading conveyor 70, and transfers the solar battery module 10 to the outside by the unloading conveyor 70. . In addition, the unloading box 68 is sequentially moved upward by the unloading elevator 37 and all other solar battery modules 10 in the other unloading support members 72 below the uppermost unloading support 72 are provided by each of the second conveyors and The operation of the unloading conveyor 70 is sequentially transferred to the unloading conveyor 70.

In the laminating system according to the present invention and the laminating method using the same, a plurality of articles are thus simultaneously transferred from the loading member to a laminated box including a plurality of laminating machines and the plurality of articles are simultaneously self-laminated Transfer to the unloading unit. As a result, when a lamination process is performed on a plurality of articles in the laminated box, the plurality of articles are supplied to the loading cartridge of the loading component and the plurality of articles are output from the unloading cartridge of the unloading component. Therefore, the manufacturing efficiency and productivity are improved.

Further, each of the plurality of laminating machines of the lamination box includes an upper body and a lower body and a plurality of upper bodies of the plurality of laminating machines are simultaneously moved up and down by the lifting members. As a result, a plurality of articles are simultaneously transferred to the laminate and transferred from the laminate. Therefore, the moving distance of the plurality of upper bodies is optimized and the processing time for the laminating process is minimized.

In addition, a plurality of laminating machines are independently formed on a plurality of platforms of the laminated box. As a result, the fault laminator is selectively repaired or replaced. Therefore, maintenance time is minimized.

Further, a pressing member for pressurizing the article having the protective film starts to expand at a central portion thereof and the expanded portion of the pressing member is expanded from the central region to the boundary region. As a result, generation of air bubbles between the protective film and the article is prevented. Therefore, the lamination procedure for attaching the protective film to the article to each other is performed stably.

It will be apparent to those skilled in the art that various modifications and changes can be made in the lamination system of the present invention and the lamination process using the lamination system without departing from the spirit or scope of the invention. Thus, the invention is intended to cover the modifications and alternatives

10. . . Solar battery module

12. . . Substrate

14. . . First electrode

16. . . Semiconductor layer

18. . . Second electrode

20. . . Adhesive layer

twenty two. . . Protective film

twenty four. . . Laminator

26. . . Lamination box

28. . . Lifting parts

32. . . Loading parts

34. . . Unloading parts

36. . . Loading lift

37. . . Unloading lift

38. . . Loading conveyor

40. . . Loading box

42. . . Loading support

44. . . Upper body

46. . . Lower body

48. . . Expansion space

50. . . Pedestal

52. . . Pressurized member

52a. . . On board

52b. . . Lower plate

54. . . Sealing member

56. . . First vent

58. . . Second vent

60. . . Third vent

62. . . Through hole

64. . . Pedestal conveyor

66. . . Heater

68. . . Unloading box

70. . . Unloading conveyor

72. . . Unloading support

80. . . First axis of rotation

82. . . Second axis of rotation

84. . . Belt

90. . . platform

100. . . Lamination system

102. . . First power transmission shaft

104. . . Second power transmission shaft

106. . . Third power transmission shaft

108. . . Power transmission pin

110. . . motor

112. . . Drive shaft

114. . . First gearbox

116. . . Protrusion

116a. . . Horizontal part

116b. . . Vertical part

118. . . Second gearbox

120. . . Third gearbox

122. . . Combination part

124. . . Support part

126. . . bracket

128. . . Screw

130. . . Chassis

132. . . pillar

134. . . Support plate

1 is a view showing a solar cell module used as an article of a lamination system according to an embodiment of the present invention;

2 is a perspective view showing a lamination system in accordance with an embodiment of the present invention;

3 is a cross-sectional view showing a laminating machine of a laminating system according to an embodiment of the present invention;

4A through 4C are cross-sectional views showing a lamination method according to an embodiment of the present invention;

Figure 5 is a perspective view showing a laminate box of a lamination system according to an embodiment of the present invention;

6 is an exploded perspective view showing a platform of a laminated box of a laminating system according to an embodiment of the present invention;

Figure 7 is a perspective view showing a lifting member of a lamination system according to an embodiment of the present invention;

Figure 8 is a perspective view showing a power transmission pin of a lamination system according to an embodiment of the present invention;

9 is an enlarged perspective view showing a projection and a power transmission pin of a laminating system according to an embodiment of the present invention; and

Figure 10 is a view showing a lamination method using a laminating system according to an embodiment of the present invention.

10. . . Solar battery module

twenty four. . . Laminator

26. . . Lamination box

32. . . Loading parts

34. . . Unloading parts

36. . . Loading lift

37. . . Unloading lift

38. . . Loading conveyor

40. . . Loading box

42. . . Loading support

68. . . Unloading box

70. . . Unloading conveyor

72. . . Unloading support

100. . . Lamination system

Claims (16)

A laminating system comprising: a plurality of laminating machines that perform a lamination process on a plurality of articles, each of the plurality of laminating machines including an upper body and a lower body in combination with the upper body to define An expansion space; a laminated box comprising a plurality of platforms, the plurality of laminators being independently disposed on the plurality of platforms; a lifting member moving up and down each of the plurality of laminating machines The upper body for separating and combining the upper body and the lower body; and a pressing member for pressurizing each of the plurality of articles in the expansion space, wherein the pressing member comprises An upper plate, a lower plate parallel to the upper plate and combined with the upper plate at a boundary region of the pressing member, wherein the upper plate and the lower plate are injected into the pressing member when an air is injected into the pressing member Expanding toward each other in an upward direction and a downward direction, and the lower plate pressurizing each of the plurality of articles, wherein when the air is injected into the pressing member, the pressing member expands and contacts in a central region Pressurizing each of the plurality of objects Person, and when the air is continuously injected into the pressing member, the pressing member expanded one portion of the boundary from the central region toward the extension region of the pressing member. The laminating system of claim 1, further comprising: a loading component that simultaneously transfers the plurality of objects to the complex a plurality of laminating machines; and an unloading member that simultaneously transfers the plurality of articles from the plurality of laminating machines. The lamination system of claim 1, wherein each of the plurality of laminating machines comprises: a pedestal on the lower body, each of the plurality of objects being disposed on the pedestal; And a heater located in the base. The laminating system of claim 3, wherein the pressing member comprises a through hole for injecting or extracting an air. The lamination system of claim 3, wherein the pressing member comprises a ruthenium rubber. The lamination system of claim 4, wherein the pressing member is expanded by injecting the air such that the pressing member covers a side portion of each of the plurality of articles. The laminating system of claim 3, wherein each of the plurality of laminating machines further comprises a susceptor conveyor on the pedestal for transferring each of the plurality of articles. The laminating system of claim 1, wherein the lifting member comprises: a motor that generates a driving force; and a plurality of power transmission pins that are coupled to one of the one side surfaces of the upper body and are driven up and down by the driving force Moving the upper body; and a power transmission member that transmits the driving force power to the plurality of power transmission pins. The laminating system of claim 1, wherein the lifting member simultaneously moves the upper bodies of the plurality of laminating machines up and down. The lamination system of claim 1, wherein each of the plurality of platforms comprises a chassis for positioning each of the plurality of laminating machines and four struts at the corners of the chassis. A lamination method using a laminating system comprising: a first step of loading a plurality of articles on a loading member; moving the upper body of each of the plurality of laminating machines upward by using a lifting member Separating the upper body and the lower body of each of the plurality of laminating machines, transferring the plurality of articles from the loading component to the plurality of laminating machines, respectively, moving the upper portion by using the lifting member a second step of combining the upper body and the lower body and performing a lamination process on the plurality of articles, the plurality of laminators being independently disposed on a plurality of platforms of a laminated box; and the plurality a third step of transferring the articles from the plurality of laminators to an unloading member, wherein the upper body and the lower body form an expansion space in combination with each other, and for each of the plurality of objects One of the pressurizing members is provided in the expansion space, wherein the pressurizing member includes an upper plate, a lower plate parallel to the upper plate and combined with the upper plate at a boundary region of the pressing member ,among them When injected into the air through a pressing member, the upper plate and the lower plate toward an upper direction and a lower direction of the inflation pressure each other and the lower plate of the plurality of objects in each, Wherein when the air is injected into the pressing member, the pressing member expands in a central region and contacts and presses each of the plurality of articles, and when the air is continuously injected into the pressing member, An expanded portion of the pressing member extends from the central portion toward the boundary region of the pressing member. The laminating method of claim 11, wherein the first step comprises: transferring the plurality of articles to a loading conveyor; and transferring the plurality of articles from the loading conveyor to a plurality of loading supports of the loading box Pieces. The laminating method of claim 11, wherein the lifting member simultaneously moves the upper bodies of the plurality of laminating machines up and down. The laminating method of claim 13, wherein the second step further comprises: evacuating the expansion space defined by the combination of the upper body and the lower body with each other, and expanding the pressing member by injecting an air, and the adding Pressing member for pressurizing each of the plurality of objects in the expansion space; heating the base on the lower body by a heater located in a base to be heated And pressing the plurality of objects on the pedestal; performing a heat treatment on the plurality of objects; cooling the plurality of objects; and ventilating the expansion space and contracting the pressing member. The lamination method of claim 14, wherein each of the plurality of objects is a solar cell module, the solar cell module comprising a solar cell, an adhesive layer on the solar cell, and a A protective film on the adhesive layer, and wherein the expansion space is evacuated to have a pressure of about 0.5 Torr and the air injected into the pressing member has a pressure of about 5 kg/cm ³ . The laminating method of claim 11, wherein the third step comprises: transferring the plurality of articles from the plurality of laminating machines to the plurality of unloading supports of the unloading box; and the plurality of objects from the plurality of The unloading support is transferred to the unloading conveyor.