KR101534023B1 - Laminating System and Method - Google Patents

Abstract

The present invention relates to a laminating system and method for thermally bonding a durable sheet material onto a material to be processed, and a laminating system for stacking a plurality of materials including an upper body and a lower body to perform a laminating process for each of a plurality of materials to be processed A laminator; A laminating cassette on which the plurality of laminators are stacked; And a lifting device for separating and coupling the upper body of the plurality of laminators to the lower body.

Laminating system, thermocompression, lifting device, supply cassette, carry-out cassette

Description

[0001] Laminating System and Method [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminating system and method, and more particularly, to a laminating system and method for thermally pressing a durable sheet material on a material to be processed.

Generally, a solar cell module is manufactured by attaching a durable sheet material on a solar cell as a material to be treated by a laminating method. Although the protection member is attached to the solar cell by the thermocompression method, it is difficult to uniformly maintain the pressure and the temperature, bubbles may be generated between the protection member and the solar cell, and the protection member maintains uniform adhesion with the solar cell It is difficult to do.

The present invention is a method for simultaneously supplying a plurality of treatments from a supply member to a laminating cassette, laminating a plurality of treatments simultaneously in a laminating cassette on which a plurality of laminators are stacked, A first object of the present invention is to provide a laminating system and a method in which productivity is improved by carrying out a laminating member.

The present invention relates to a laminating apparatus for laminating an upper body of a plurality of laminators for lifting a plurality of laminating apparatuses in order to simultaneously feed a plurality of laminating materials to a laminating cassette or carry them out simultaneously from a laminating cassette, And a second object of the present invention is to provide a laminating system and method for optimizing the stroke distance of an upper body by moving up and down by an apparatus.

It is a third object of the present invention to provide a laminating system and method capable of selectively repairing or replacing a laminator in which an abnormality has occurred, by independently mounting a plurality of laminators on a plurality of stages in a laminating cassette.

The present invention provides a laminating system and method in which a press member for pressing a member to be processed having a protective member laminated starts to expand at the center of the protective member and diffuses to the periphery of the protective member, thereby uniformly bonding the member without bubbles The fourth purpose is to do.

According to an aspect of the present invention, there is provided a laminating system comprising: a plurality of laminators including an upper body and a lower body to perform a laminating process for each of a plurality of materials to be processed; A laminating cassette on which the plurality of laminators are stacked; And a lifting device for separating and coupling the upper body of the plurality of laminators to the lower body.

In the laminating system, a supply member for simultaneously supplying the plurality of the processed materials to each of the plurality of laminators; And a carry-out member which simultaneously conveys each of the plurality of to-be-processed materials completed in the laminating process from the plurality of laminators.

In the above-described laminating system, the feeding member may include an inlet conveyor for conveying the plurality of materials to be processed from the outside; A supply cassette including a plurality of supply supports on which each of the plurality of the processed materials supplied from the drawing conveyor is loaded; And a lifting device for lifting or lowering the supply cassette in a vertical direction.

In the above-described laminating system, each of the plurality of supply supports includes a supply conveyor for transporting the material to be processed.

In the laminating system as described above, each of the plurality of laminators includes: the upper body; A lower body coupled with the upper body to provide an expansion space; A susceptor provided on the lower body and on which the material to be treated is located; A heater incorporated in the susceptor; And a pressing member installed in the expansion space and pressing the object to be processed.

In the laminating system as described above, the pressing member includes an upper plate, a lower plate parallel to the upper plate and joined to the upper plate at the peripheral portion, and an air inlet for injecting or exhausting air.

In the above-described laminating system, the pressing member is made of a silicone rubber.

In the laminating system as described above, when the pressing member is inflated by air injection, the pressing member has a size that covers the side surface of the material to be processed.

The laminating system may include a susceptor conveyor mounted on the susceptor to transfer the material to be processed.

In the above-described laminating system, the carry-out member includes a plurality of carry-out supports for simultaneously carrying out the plurality of the to-be-processed materials after the laminating process is carried out from the plurality of laminators and loading the same. An elevating device for vertically raising or lowering the carry-out cassette; And a take-out conveyer for taking out each of the plurality of to-be-treated materials from the plurality of take-out supports.

In the laminating system, the material to be treated is a solar cell module, and the solar cell module has an adhesive on the solar cell and a protective member on the adhesive.

In the laminating system as described above, the upper body may include a protrusion provided on the side surface.

In the above-described laminating system, the lifting device may include: a driving force generating unit generating a driving force; A plurality of power transmission pins connected to the projections of the plurality of upper bodies and moving up and down the upper body by the driving force; And power transmission means for transmitting the driving force to the plurality of power transmission pins.

In the laminating system as described above, the power transmitting means may include: a driving shaft to which the driving force of the driving force generating unit is transmitted; A first power transmission shaft connected to the drive shaft and installed on the upper portion of the laminating cassette; A second power transmission shaft vertically connected at both ends of the first power transmission shaft; And a third power transmission shaft connected to both ends of the second power transmission shaft and the plurality of power transmission pins.

The laminating system may further include: a first gear box interposed between the driving shaft and the first power transmitting shaft; A second gear box interposed between the first power transmission shaft and the second power transmission shaft; And a third gear box interposed between the second power transmission shaft and the third power transmission shaft.

In the laminating system, the third power transmission shaft may include a rotation shaft connected to the second power transmission shaft, a screw fixed to a bottom surface on which the laminating cassette is installed, and a hole provided below the rotation shaft, .

In the laminating system, the laminating cassette is constituted by a plurality of stages on which each of the plurality of laminators is stacked.

In the laminating system, each of the plurality of stages includes a bottom frame on which the plurality of laminators are placed, and four pillars provided on corners of the bottom frame.

According to another aspect of the present invention, there is provided a laminating method using a laminating system, comprising: a first step of stacking a plurality of materials to be processed on a supply member; A plurality of laminating cassettes having a plurality of laminating units, each of the laminating units including an upper body and a lower body separable from the upper body, Step 2; And a third step of simultaneously transferring the plurality of to-be-processed materials for which the laminating process is completed from the laminating cassette to the carry-out member at the same time.

In the laminating method using the laminating system, the first step may include preparing a plurality of materials to be processed; Loading the plurality of to-be-processed materials on a drawing conveyor; And loading each of the plurality of to-be-treated materials onto a supply cassette including a plurality of supply supports by the inlet conveyor.

In the laminating method using the laminating system as described above, each of the plurality of supply supports is sequentially arranged in the same plane or height as the inlet conveyor, and each of the plurality of the processed materials is sequentially And a step of loading the wafer with the wafer.

In the laminating method using the laminating system, the second step may include separating the upper body and the lower body of the plurality of laminators by driving a lifting device to carry the material to be processed, Loading the plurality of materials to be processed into the plurality of laminators; Coupling the upper body and the lower body of the plurality of laminators by driving the lifting device; Performing the laminating process on the plurality of materials to be processed; And separating the upper body and the lower body of the plurality of laminators by driving the lifting device to take out the material to be processed.

In the laminating method using the laminating system, each of the plurality of laminators may include an upper body, a lower body coupled with the upper body to provide an expansion space, a lower body provided on the lower body, A heater incorporated in the susceptor, and a pressing member provided in the expansion space.

In the laminating method using the laminating system as described above, the step of evacuating the expansion space and expanding the compression member is performed. Heating the susceptor by the heater to heat-press the target material; Heat treating the material to be treated; Cooling the material to be treated; Injecting air into the expansion space, and exhausting the compression member.

In the laminating method using the laminating system as described above, the material to be treated is a solar cell module having an adhesive on a solar cell and a protective member on the adhesive, wherein the pressure of the expansion space is 0.5 torr, And the air pressure to be injected is 5 kg / cm < 3 >.

In the laminating method using the laminating system as described above, the material to be thermally compressed is maintained at a temperature of 140 ° C. for 10 to 15 minutes under the condition that the compression member is expanded and pressure is applied to the material to be processed. do.

In the laminating method using the laminating system as described above, the heat treatment step of the material to be treated may maintain the expansion space at 120 degrees for 5 to 10 minutes, and the step of cooling the material to be processed may be performed at 100 degrees .

In the laminating method using the laminating system, the third step may include loading the plurality of the processed materials from the laminating cassette onto a carry-out cassette including a plurality of carry-out supports; Loading the plurality of the processed materials from the carry-out cassette onto the take-out conveyor; And a control unit.

In the laminating method using the laminating system as described above, each of the plurality of unloading supports is sequentially arranged in the same plane or height as the drawing conveyor, and each of the plurality of unloading materials is transferred from the plurality of unloading supports to the withdrawal conveyor And sequentially stacking the first and second substrates.

The laminating system and method of the present invention have the following effects.

The present invention provides a laminating system including a laminating cassette including a plurality of laminators, a supply member for simultaneously supplying a plurality of treatments to the laminating cassette, and a take-out member for simultaneously carrying out a plurality of treatments of the laminating cassette. A plurality of materials to be processed are simultaneously subjected to a laminating process in a laminating cassette, a plurality of materials to be processed are collectively supplied to a supply cassette, and a plurality of unprocessed materials to be processed are collectively taken out from the takeout cassette And the process efficiency is improved.

.

The present invention relates to a laminating apparatus for laminating a plurality of laminating apparatuses to a plurality of laminating cassettes, which are composed of an upper body and a lower body, The laminating time can be reduced by optimizing the stroke distance of the upper body.

The present invention can selectively perform maintenance or replacement of the laminator in which an abnormality has occurred by loading a plurality of laminators on each of a plurality of stages independently in the laminating cassette, thereby minimizing maintenance and repair time. The present invention can perform a laminating process in which a pressing member for pressing a member to be processed having a protective member laminated starts to expand at the center of the protective member and diffuses to the periphery of the protective member, have.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic view of a solar cell module according to the present invention, FIG. 2 is a schematic view of a laminating system according to the present invention, FIG. 3 is a sectional view of a laminator according to the present invention, FIG. 5 is a schematic view of a laminating cassette according to the present invention, FIG. 6 is an exploded perspective view of a stage of a laminating cassette according to the present invention, and FIG. 7 is a cross- 9 is a perspective view illustrating a connection relationship between the projecting portion and the power transmission pin according to the present invention, and FIG. 10 is a perspective view of the solar cell module according to the present invention. Of the laminating process.

In the present invention, the material to be treated for the laminating process uses a solar cell module. 1, a solar cell module 10 includes a first electrode 14 on a substrate 12, a semiconductor layer 16 on a first electrode 14, a second electrode 18 on a semiconductor layer 16, A protective member 22 on the second electrode 18 and an adhesive 20 for bonding the second electrode 18 and the protective member 22 to each other.

The substrate 12 is made of transparent glass and the first electrode 14 is made of a transparent conductive metal such as ITO or zinc tin oxide. The semiconductor layer 16 includes a P-type semiconductor layer as the first conductive semiconductor layer, an intrinsic semiconductor layer as the active layer, and an N-type semiconductor layer as the second conductive semiconductor layer. The second electrode 18 is formed of a metal such as aluminum. The protective member 22 functions to maintain the durability without deteriorating when the solar cell module 10 is repeatedly used for a long time under the extreme environmental conditions of high temperature and high humidity, and uses a glass substrate or the like.

The adhesive 20 and the protective member 22 are laminated on the glass substrate and the adhesive 20 is applied to the glass substrate in the case where the second electrode 18 is provided on a separate glass substrate, The glass substrate and the protective member 22 can be adhered to each other. The protective member 22 may be provided on the lower surface of the substrate 12 with an adhesive 20 interposed therebetween.

The adhesive 20 is an ethylene vinyl acetate copolymer referred to as an EVA abbreviation. The adhesive 20 may be applied in the form of a liquid and used in some cases. However, in the present invention, And the second electrode 18 and the protection member 22 are adhered to each other by thermocompression bonding.

A transparent glass substrate is used as the substrate 12, and the light incident from the back surface of the substrate 12 is transmitted to the first electrode 14 which is transparent. The first electrode 14 is formed to guide sunlight incident through the substrate 12 to the intrinsic semiconductor layer through the p-type semiconductor layer and to maintain an ohmic contact with the p- do. The P-type semiconductor layer is a layer provided to guide a carrier generated in the intrinsic semiconductor layer to the first electrode 14 by sunlight. The intrinsic semiconductor layer used as an active layer is a layer formed of a material of an intrinsic semiconductor for absorbing sunlight to generate a carrier, In order to induce the layer. A wiring (not shown) for extracting an electromotive force is connected to the second electrode 18.

2, the laminating system 22 is a structure in which the solar cell module 10 is located and the second electrode 18 and the protection member 22 are bonded by thermocompression bonding of the adhesive 20 A laminating cassette 26 in which a plurality of laminators 24 for the laminating process for laminating process are stacked, a supply member 32 for supplying the solar cell module 10 and a laminating cassette 26 in which laminating is completed in the laminating cassette 26 And a carry-out member 34 for carrying out the solar cell module 10.

The supply member 32 of the laminating system 22 is provided with a plurality of rollers 20 formed of a plurality of rollers for transporting the solar cell module 10 having the adhesive 20 and the protective member 22 stacked on the solar cell from the outside, A conveyor 38 and a laminating system 26 for simultaneously pressing the solar cell module 10 in which the protection member 22 is stacked from the incoming conveyor 38 while lifting or lowering in the vertical direction A feed cassette 40 for sequentially loading the solar cell module 10 and a first elevating device (not shown) for vertically raising or lowering the feed cassette 40. [

The supply cassette 40 is mounted on each of a plurality of supply supports 42 on which the solar cell module 10 is placed and a plurality of supply supports 42 and is supplied as a transfer device for moving the solar cell module 10. [ A conveyor (not shown) is installed. The feed conveyor includes a belt that is rotated by two rotating shafts and two rotating shafts. A first sensing means (not shown) for sensing whether the solar cell module 10 is aligned in the correct position is provided on the supply support stand 42.

The supply cassette 40 is vertically lowered by the first elevating device and the uppermost supply supporting table 42 is lowered to the same height as the incoming conveyor 38 in order to supply the solar cell module 10 to the laminating cassette 26 The solar cell module 10 is stacked on the uppermost supply support 42 by driving the feed conveyor provided on the feed conveyor 42 and the feed conveyor 42 on the uppermost layer.

Then, while the first landing gear is sequentially elevated, the solar cell module 10 is loaded on all the supply supports 42 located at the lower portion of the uppermost layer by driving the inlet conveyor 38 and the supply conveyor. In other words, each of the plurality of supply supports 42 is sequentially arranged in the same plane or altitude as the drawing conveyor 38 from the topmost layer, and each of the plurality of solar cell modules 10 is connected to each of the plurality of supply supports 42 .

The plurality of feed supports 42 of the feed cassette 40 and the plurality of susceptors 50 of the laminating cassette 26 are aligned to maintain the same plane or elevation and the feed conveyors And the susceptor conveyor 64 of the laminating cassette 26 simultaneously to move the plurality of solar cell modules 10 to the lynching cassette 26 at the same time.

5, the laminating cassette 26 is configured to simultaneously raise and lower the plurality of stages 90 on which each of the plurality of laminators 24 is loaded and the upper body 44 of the plurality of laminators 24 And a lifting device 28.

6, the stage 90 is constructed to accommodate a rectangular laminator 24, and includes a bottom frame 130 on which the laminator 24 is placed, and four pillars (not shown) provided on the edges of the bottom frame 130. [ and a filler 132. The four pillars 132 function to support the stage 90 stacked on the top. A plurality of stages 90 and a laminator 24 are sequentially stacked on the uppermost stage 90 and a duplicate plate 134 for installing the lifting device 28 is provided on the uppermost stage 90 as shown in Fig. Since there is no need to close the space between the plurality of stages 90, the bottom frame 130 is manufactured in a lattice form as shown in Fig. The side surface of the stage 90 is all opened.

The laminator 24 of the laminating cassette 26 is coupled to the upper body 44 and the upper body 44 to form a lower portion 48 that provides an inflating space 48 of the pressing member 52, A susceptor 50 which is installed on the lower body 46 and on which the solar cell module 10 is placed and a pressing member 52 which is installed in the inflation space 48. On the upper body 44 and the lower body 46, a second sensing means (not shown) for sensing whether the solar cell module 10 is aligned in the correct position is provided.

 A contact member 54 such as an O-ring is interposed between the upper body 44 and the lower body 46 and the contact member 54 serves to disconnect the inflation space 48 from the outside during the laminating process. The pressure due to the weight of the upper body 44 is applied to the contact member 54 to seal the inner space of the laminator 24 when the laminating process is performed.

Each of the upper body 44 and the lower body 46 may be provided with first and second venting holes 56 and 58 for making the inflation space 48 vacuum or atmospheric pressure. On the four side surfaces of the upper body 44, protrusions 116 are provided. The protruding portion 116 is composed of a horizontal portion 116a and a vertical portion 116b. The power transmission pin 108 of the lifting device 28 is positioned below the protrusion 116 and the upper body 44 is lifted and lowered by driving the lifting device 28 to move the lower body 46, . The vertical portion 116b of the protrusion 116 prevents the power transmission pin 108 from escaping.

5, the laminating cassette 26 includes first and second surfaces adjacent to the supply member 32 and the carry-out member 34, third and fourth surfaces in the direction perpendicular to the moving path of the solar cell module 10, Plane. The protrusions 116 are provided on both sides of the upper body 44 of the laminator 24 corresponding to the third and fourth faces of the laminating cassette 26. Two of the upper body 44 are provided on opposite sides of the upper body 44 so as to face each other.

It is preferable that the pressing member 52 is installed at a position where the expansion space 48 is uniformly distributed vertically. The pressing member 52 is composed of a top plate 52a and a bottom plate 52b parallel to the top plate 52a and the top plate 52a and the bottom plate 52b are joined to each other at the peripheral portion, And an injection port 62 for injecting air. The injection port 62 is connected to the third vent hole 60. The susceptor 50 is internally provided with a heater 66 for transferring adhesive heat to the adhesive 22 and the protective member 20 during the laminating process. A susceptor conveyor 64 is installed on the susceptor 50 to transfer the solar cell module 10.

The susceptor conveyor 64 includes a first rotary shaft 80 positioned in a direction facing the feed cassette 40, a second rotary shaft 82 positioned in a direction facing the carry-out cassette 68, And a belt 84 that is rotated by the rotational shafts 80, 82. A susceptor 50 is positioned between the first and second rotations 80 and 82 and the solar cell module 10 is positioned on a belt 84 substantially corresponding to the susceptor 50. The belt 84 is used as a glass wool Teflon material or the like, and has a thickness of about 0.2 mm.

The upper body 44 and the lower body 46 constituting the laminator 24 are connected to the upper body 44 and the lower body 46 in order to provide an expansion space for the passageway and the laminating process for the solar cell module 10, The body 46 must be joined and separated. 5, the laminating cassette 26 includes a plurality of stages 90 and a plurality of laminators (not shown) on which the laminator 24 is mounted, for coupling and separating the upper body 44 and the lower body 46, And a lifting device 28 for simultaneously elevating and lowering the upper body 44 of the upper and lower frames 24 and 24.

The infant space 48 is evacuated by the first and second ventilation holes 56 and 58 while the susceptor 50 and the solar cell module 10 are heated by the heater 66 at an appropriate temperature for the laminating process At the same time as the exhaust chamber, air is injected into the compression member (52) through the third vent hole (60) to expand it. Therefore, the protective member 22 and the second electrode 18 are attached by thermocompression bonding of the adhesive 20.

The adhesive 20 uses EVA, and the temperature and pressure inside the laminator 26 are maintained at 140 degrees and 0.5 torr, respectively. When the length of the solar cell module 10 is 2200 mm and 2600 mm in length, the protective member 22 and the second electrode 18 are attached to each other by thermocompression bonding of the adhesive 20 in 15 to 16 minutes do. Depending on the size of the solar cell module 10, the material of the protective member 22 and the adhesive 20, and other conditions, the adhesion time by thermocompression bonding can be varied.

The compression member 52 is made of silicone rubber, and inflated in a short time while the expansion space 48 is changed to vacuum together with the air injection. The process of adhering the protection member 22 to the solar cell module 10 while expanding the pressing member 52 is shown in FIGS. 4A to 4C. 4A, when the expansion space 48 is evacuated to a vacuum and air is injected into the compression member 52, the expansion starts at the center of the compression member 52 and the compression member 52 at the expanded central portion is protected And contacts the member 22 first. When air is subsequently injected into the pressing member 52, as shown in FIG. 4B, the expanding portion of the pressing member 52 is in contact with the protecting member 22 and diffuses from the central portion to the peripheral portion under pressure. 4C, the expansion of the pressing member 52 continues until the side surface of the solar cell module 10 is covered.

It is preferable that the pressing member 52 has a size enough to cover the side surface of the solar cell module 10 when it is inflated. When the lengths of the horizontal and vertical solar cell modules 10 are 2200 mm and 2600 mm, respectively, the width and length of the pressing member 52 are preferably about 2700 mm and 3100 mm, respectively. In other words, it is preferable that the pressing member 52 extends from the end of the solar cell module 10 by about 250 mm.

Bubbles are not generated between the protective member 22 and the second electrode 18 because the pressing member 52 expands preferentially in the central portion and contacts the protective member 22 and expands from the central portion to the peripheral portion, The protective member 22 is stably attached to the second electrode 18 by the second electrode 20. When the laminating process is completed, the upper body 44 and the lower body 46 are separated and the solar cell module 10 is moved to the carry-out member 34 by driving the susceptor conveyor 64 of the susceptor 50 Lt; / RTI >

3 and 4A to 4C show that the pressing member 52 is composed of a bottom plate 52b parallel to the top plate 52a and the top plate 52a and the top plate 52a and the bottom plate 52b at the periphery And an injection port 62 for injecting or exhausting air. However, the pressing member 52 can be formed as a single plate. The upper region of the inflation space 48 is set to atmospheric pressure and the lower region of the inflation space 48 is evacuated to a vacuum and the laminating process 52 Can be performed.

7, the lifting device 28 includes a first power transmission shaft 102, two second power transmission shafts 104 connected to the first power transmission shaft 102, a second power transmission shaft 104, A plurality of power transmitting pins 108 connected to the third power transmitting shaft 106, a motor 110 generating a driving force, and a third power transmitting shaft 106 connected to the third power transmitting shaft 106. [ And a screw 118 provided at the lower portion of the base plate 106.

The motor unit 110 is connected to the first power transmission shaft 102 via a drive shaft 112 installed vertically. The drive shaft 112 is connected to the center of the first power transmission shaft 102 through a first gear box 114 and the first power transmission shaft 102 is connected to the center of the second power transmission shaft 104 2 gear box 118 are interposed therebetween. The third power transmission shaft 106 is connected to both ends of the second power transmission shaft 104 through the third gear box 120. [ The third power transmission shaft 106 includes a screw 118 fixed to the bottom surface of the rotary shaft and the bottom of the laminating cassette 26 and a hole formed in the lower portion of the rotary shaft for receiving the screw 118, . The screw 118 includes threads and the third power transmitting shaft 106 is raised or lowered while the rotating shaft 106a connected to the fixed screw 118 rotates. do.

The driving force of the motor unit 110 is transmitted to the first power transmitting shaft 102 disposed perpendicular to the driving shaft 112 via the driving shaft 112 and the first gear box 114, 102 are rotated. The first power transmission shaft 102 is disposed perpendicular to the second power transmission shaft 104 and the rotational force of the first power transmission shaft 102 is transmitted to the second power transmission shaft 104. The second power transmitting shaft 104 is disposed perpendicular to the third power transmitting shaft 106 and the rotational force of the second power transmitting shaft 104 is transmitted to the third power transmitting shaft 106.

The third power transmission shaft 106 is moved up or down while the third power transmission shaft 106 coupled with the fixed screw 118 rotates. When the third power transmission shaft 106 ascends and descends, the first and second power transmission shafts 102 and 104 transmit the driving force by rotation but do not ascend and descend. The upper body 44 is moved upward and downward by the upper body 44 connected to the third power transmission shaft 106 and the power transmission pin 108 and the power transmission pin 108, Joined or separated.

The gap between the plurality of laminators 24 and the spacing between the plurality of power transmitting fins 108 may not coincide with each other due to the lifting device 28, resulting in a slight error. Therefore, when the upper body 44 and the lower body 46 are engaged with each other, the horizontal portion 116a of the protrusion 116 and the power transmission pin 108 are not in close contact with each other, Can be set.

The first gear box 114 is installed at the center of the laminating cassette 26. The plane of the laminating cassette 26 is provided in a rectangular shape having a long axis and a short axis and the first power transmission shaft 102 passes through the first gear box 114 and traverses the center of the short axis of the lyning cassette 26 And is arranged parallel to the long axis. In a horizontal plane parallel to the upper portion of the laminating cassette 26, two second power transmission shafts 104 are disposed perpendicular to the first power transmission shaft 102. The two second power transmission shafts 104 are provided on both sides parallel to and facing each other with the minor axis of the laminating cassette 26. Four third power transmission shafts 106 are installed parallel to the side edges of the lyning cassette 26. The power transmitting pin 108 is parallel to the protruding portion 116 provided on the upper body 44 and is located at the lower portion of the protruding portion 116.

The power transmission pin 108 is connected to the third power transmission pin 108 as shown in FIG. The power transmission pin 108 has a cylindrical bracket 120 inserted into the third power transmission pin 108, a coupling hole 122 coupled with the bracket 120, And a support portion 124 for supporting the support portion 116. The support portion 124, which corresponds to the engagement portion 122, protrudes outwardly of the liner 244.

5, the first and second power transmission shafts 102 and 104 of the lifting device 28 are fixed to the upper portion of the lyning cassette 28, and the driving force of the motor unit 110 is transmitted to the third power transmission < Axis 106 to rotate. Then, the third power transmission shaft 106 is lifted or lowered in the vertical direction by rotation.

The upper body 44 of the plurality of laminators 24 is separated from the lower body 46 at the same time by lifting the lifting device 28 and the solar cell module 10 is moved from the feeding cassette 40 to the laminator 24, The upper body 44 of the plurality of laminators 24 is engaged with the lower body 46 by the lifting of the lifting device 28. As a result, The inner space of the laminator 24 can maintain airtightness by applying pressure to the contact member 54 between the upper body 44 and the lower body 46 due to the weight of the upper body 44. [

The interval at which the upper body 44 of the laminator 24 is separated from the lower body 46 is an interval enough to allow the solar cell module 10 to be fed and unloaded to the feeding member 32 and the carry- Suffice. Since the plurality of laminators 24 are independently mounted on each of the plurality of stages 90 of the laminating cassettes 26 and the plurality of upper bodies 44 can be raised and lowered simultaneously, The stroke distance can be optimized. Therefore, when the solar cell module 10 is supplied to and taken out of the laminator 24, the processing time can be shortened by optimizing the stroke distance of the upper body 44. Since the plurality of laminators 24 are independently mounted on each of the plurality of stages 90 of the laminating cassette 26, the laminator 24 in which the abnormality has occurred can be individually repaired or replaced.

The carry-out member 34 of the laminating system 22 includes a carry-out cassette 68 for receiving the solar cell module 10 from the laminating cassette 26, a second lifting / lowering device for vertically lifting or lowering the take- (Not shown), and a take-out conveyor 70 composed of a plurality of rollers for sequentially taking out the supplied solar cell modules 10 while the take-out cassettes 68 are sequentially raised or lowered. The take-out cassette 68 includes a plurality of take-out supports 72 on which a plurality of solar modules 10 are mounted and a take-out conveyor 72 for mounting the plurality of take- (Not shown).

 The carry-out conveyor includes a belt that is rotated by two rotating shafts and two rotating shafts. A third sensing means (not shown) for sensing whether the solar cell module 10 is aligned in the correct position is provided on the carry- The plurality of susceptors 50 of the laminating cassette 26 and the plurality of unloading supports 72 of the carry-out cassette 40 are arranged in the same plane or in the same plane as the take- The plurality of susceptor conveyors 64 of the laminating cassette 26 and the plurality of carry-out conveyors of the carry-out cassette 40 are simultaneously driven so that the solar cell module 10 is moved from the laminating cassette 26 To the carry-out cassette (40).

When the carry-out supply cassette 40 is vertically lowered by the second lifting apparatus and the uppermost lift support base 72 maintains the same plane or elevation as the susceptor conveyor 70, The solar cell module 10 is stacked on the drawing conveyor 70 by the take-out conveyor 70 and the take-out conveyor 70 provided on the take-out conveyor 70, The solar cell modules 10 of all the lifting supports 72 located at the bottom of the uppermost layer are aligned and leveled out in the same plane and at the same height as the drawing conveyor 70 while the second landing gear is sequentially raised. In other words, each of the plurality of take-out supports 72 is sequentially arranged in the same plane or height as the take-out conveyor 70, and each of the plurality of solar cell modules 10 is moved from the plurality of take- (70), and are carried out to the outside.

A large number of laminators 24 are stacked on the laminating cassette 26 and it takes a considerable time to load the solar cell module 10 on each of the plurality of laminators 24. [ The laminating system 22 of the present invention can simultaneously perform the laminating process of a plurality of solar cell modules 10 in a laminating cassette 26 in which a plurality of laminators 24 are stacked, It is possible to load the solar cell module 10 for the laminating process on a plurality of supply supports 42 and to take out the solar cell module 10 which has completed the laminating process to the plurality of unloading supports 72 of the carry- And the process efficiency is improved.

The laminator 24 installed in the laminating cassette 26, the supply support table 42 of the supply cassette 40 and the removal support table 72 of the carry-out cassette 68 are all provided in the same number and the loading and unloading process is considered The number of the laminator 24, the feed support 42, and the take-out support 72 is preferably about 2 to 15.

As described above, it takes approximately 15 to 20 minutes to perform the laminating process in the laminator 24 of the solar cell module 10. During the laminating process for 15 to 20 minutes, the supply cassette 40 is loaded with a plurality of solar cell modules 10 for the laminating process. The plurality of solar cell modules 10 having completed the laminating process are transferred from the laminating cassette 26 to the take-out cassette 68 in which a plurality of take-out supports 72 are stacked. During the laminating process for 15 to 20 minutes, the plurality of solar cell modules 10 loaded on the take-out cassette 68 are sequentially carried out to the take-out conveyor 70.

The inlet and the outlet through which the solar cell module 10 enters and exits from the feed cassette 40, the laminating cassette 26 and the carry-out cassette 68 are arranged on the same axis line for smooth transportation of the solar cell module 10. In other words, the supply cassette 40 and the carry-out cassette 68 are disposed on the first surface of the laminating cassette 26 and on the second surface opposite to the first surface, respectively, with the laminating cassette 26 as the center.

FIG. 10 is a flowchart showing a flow of a laminating process of a solar cell module according to the present invention, with reference to FIGS. 1 to 9. FIG.

The laminating process of the solar cell module 10 includes a first step of loading the solar cell module 10 onto the supply cassette 40, a first step of loading the solar cell module 10 onto the laminating cassette 26, And a third step of carrying out the second step and the solar cell module 10 from the laminating cassette 26.

 The first step of stacking the solar cell module 10 on the supply cassette 40 includes a first sub step of laminating the adhesive 20 and the protective member 22 on the solar cell, And a third sub-stage for loading the solar cell module 10 onto the plurality of supply supports 42. The second sub-stage is a stage in which the solar cell module 10 is loaded.

In the second sub-step, after the feed cassette 40 is lowered by the first elevating device and the uppermost feed support 42 is aligned to maintain the same plane or elevation as the incoming conveyor 38, the incoming conveyor 38 The solar cell module 10 is loaded. In the third sub-stage, the solar cell module 10 is loaded on the uppermost supply support 42 by driving the supply conveyor of the supply conveyor 42 of the uppermost layer and the inlet conveyor 38, And the solar cell module 10 is loaded on all the supply supports 42 from the drawing conveyor 38 in the same manner.

The second step of loading the solar cell module 10 into the laminating cassette 26 and performing the laminating process is to move the plurality of laminators (not shown) in order to carry the solar cell module 10 by driving the lifting device 28 A second sub step of separating the upper body 44 and the lower body 46 of the plurality of supporters 42 and 24 and the second sub step of aligning each of the plurality of supporters 42 and the plurality of susceptors 50, A third sub-step of loading the battery module 10 from the feed cassette 40 to the plurality of laminators 24 of the laminating cassette 26, the lifting device 28 driving the upper laminator 24 of the plurality of laminators 24, A fourth sub step of assembling the susceptor 50 to the lower body 46 by the fourth step of evacuating the inflation space 48 and inflating the press member 52, A sixth step of heating the solar cell module 10, a seventh step of thermocompression of the solar cell module 10, A tenth sub step of cooling the solar cell module 10, a tenth sub step of injecting air into the inflation space 48 and exhausting the press member 52, And an eleventh step of separating the upper body 44 and the lower body 46 of the plurality of laminators 24 by driving the lifting device 28 in order to take out the laminator 24.

In the second sub-step, the plurality of feed supports 42 of the feed cassette 40 and each of the susceptors 50 of the plurality of laminators 24 are aligned to maintain the same plane or elevation. A plurality of supply conveyors provided on a plurality of supply supports 42 and a plurality of susceptor conveyors 64 provided on a plurality of susceptors 50 are simultaneously driven to transfer a plurality of solar cell modules 10 From the feeding cassette 40 to the susceptor 50 of the plurality of laminators 24. When the solar cell module 10 is judged by the second sensing device whether or not the susceptor 50 is transported to the process position and corrects it when it deviates from the process position, To the susceptor 50 of the laminator 24, the feed cassette 40 loads the solar cell module 10 for the laminating process.

In the fourth sub-step, by the engagement of the upper body 44 and the lower body 46, an inflation space 48 in which the pressing member 52 can inflate is set. At the fifth stage, exhaust is performed to make the expansion space 48 vacuum through the first and second ventilation holes 56 and 58 provided in the upper body 44 and the lower body 46, respectively. At the same time, when air is injected into the pressing member 52 through the third vent hole 60, the air bag type pressing member 52 begins to expand from the center portion. The pressure in the expansion space 48 is about 0.5 torr, and the air pressure injected into the compression member 52 is 5 kg / cm < 3 >.

When the expansion space 48 is evacuated to vacuum and air is injected into the compression member 52, the expansion starts at the center of the compression member 52 and the compression member 52 at the center part And contacts the member 22 first. Subsequently, when air is injected into the pressing member 52, the expanding portion of the pressing member 52 comes into contact with the protecting member 22 and diffuses from the central portion to the peripheral portion in a state of applying pressure. Accordingly, the pressing member 52 is expanded in a state where the pressure is applied from the central portion to the peripheral portion of the solar cell module 10, thereby suppressing the generation of air bubbles. Until the side surface of the solar cell module 10 is covered, the compression member 52 continues to expand, and a uniform pressure is applied to the solar cell module 10.

In the sixth sub-step, the susceptor 50 is heated by the heater 66. The heating temperature of the susceptor 50 by the heater 66 is about 140 degrees. When the vacuum of the expansion space 48 and the air injection of the compression member 52 continue and the heater 66 maintains the susceptor 50 at 140 degrees for 10 to 15 minutes at the seventh stage, The protective member 22 and the second electrode 18 of the solar cell module 10 are thermally bonded by the adhesive 20. In the eighth step, the temperature of the heater 66 is lowered from 140 to 120 degrees, and the inside of the expansion space 48 is maintained at 120 degrees for 5 to 10 minutes to heat the solar cell module 10. [ The heat treatment process is a process necessary for the protective member 22 and the second electrode 18 to be stably bonded by the adhesive 20.

The temperature of the heater 66 is lowered so that the temperature of the susceptor 50 is maintained at about 100 degrees in the ninth sub-step, and the protective member 22 and the second electrode 18 in the solar cell module 10, Is completed. The temperature of the heater 66 is maintained at about 100 degrees in order to reduce the temperature rise time of the expansion space 48 in the continuous laminating process. At the tenth stage, air infusion is performed to make the inflation space 48 at atmospheric pressure through the first and second ventilation holes 56, 58 provided in each of the upper body 44 and the lower body 46 At the same time, when the air is exhausted through the third vent hole 60 to the pressing member 52, the air bag type pressing member 52 contracts and is reduced to the original state.

When the upper body 44 and the lower body 46 of the laminator 24 are separated from each other at the eleventh stage, the laminating process is completed and the solar cell module 10 is transferred to the take-out cassette 68 And a supply port through which the solar cell module 10 for the laminating process is supplied from the supply cassette 40 are set. After the eleventh sub-step, the second step of loading the solar module 10 into the laminating cassette 26 and performing the laminating process is repeated.

The third step of taking out the solar cell module 10 from the plurality of laminators 24 includes a first sub step of aligning the plurality of susceptors 50 and the plurality of unloading supports 72, 10 from the plurality of laminators 24 to the take-out cassette 68 and the ascending and descending of the take-out cassette 68 to the take-out conveyor 70 from the plurality of take- And a third sub-step of loading the solar cell module 10.

In the first sub-stage, the plurality of susceptors 50 of the laminating cassette 26 and each of the plurality of carry-out supports 72 of the carry-out cassette 68 are aligned so as to maintain the same plane or elevation. At the second stage, the susceptor conveyor 64 of the plurality of susceptors 50 and the plurality of carry-out conveyors of the plurality of carry-out supports 72 are simultaneously driven to transfer the solar cell module 10 from the laminating cassette 26 To the carry-out cassette (40).

In the third sub-step, when the carry-out supply cassette 40 is vertically lowered by the second lifting device and the uppermost lifting support 72 maintains the same plane or elevation as the fourth conveyor 70, The solar cell module 10 is stacked on the drawing conveyor 70 by the driving of the take-out conveyor 70 and the take-out conveyor 70 provided on the support table 72, and is carried out to the outside. The second lifting and lowering device sequentially lifts the take-out cassette 68 and takes out the solar cell module 10 to the take-out conveyor 70 from all the lifting supports 72 located at the bottom of the uppermost layer in the same manner.

1 is a schematic view of a solar cell module according to the present invention;

Figure 2 is a schematic view of a laminating system according to the present invention;

3 is a cross-sectional view of a laminator according to the present invention

4A to 4C are schematic flowcharts of a process of thermocompression bonding of a solar cell module according to the present invention

5 is a schematic view of a laminating cassette according to the present invention

6 is an exploded perspective view of the stage of the laminating cassette according to the present invention.

Figure 7 is a schematic view of a lifting device according to the invention

8 is a detailed view of a power transmitting pin according to the present invention

9 is a perspective view showing a connection relationship between the projecting portion and the power transmission pin according to the present invention.

10 is a flowchart of a laminating process of a solar cell module according to the present invention

Claims (28)

A plurality of laminators including an upper body and a lower body performing a laminating process for each of a plurality of materials to be processed; A laminating cassette including a plurality of stages on which each of the plurality of laminators is independently loaded; A lifting device for lifting and lowering the upper body of each of the plurality of laminators to separate and engage the upper body with the lower body; The laminating system comprising: The method according to claim 1, A supplying member for simultaneously supplying the plurality of the processed materials to each of the plurality of laminators; A carry-out member which simultaneously conveys each of the plurality of the processed materials from the plurality of laminators; The laminating system comprising: The method according to claim 1, Wherein each of the plurality of laminators comprises: The upper body; A lower body coupled with the upper body to provide an expansion space; A susceptor provided on the lower body and on which the material to be treated is located; A heater incorporated in the susceptor; A pressing member installed in the expansion space and for pressing the material to be processed; The laminating system comprising: The method of claim 3, Wherein the pressing member comprises an upper plate, a lower plate parallel to the upper plate and coupled to the upper plate at the periphery, and an inlet for injecting or exhausting air. The method of claim 3, Wherein the pressing member is made of silicone rubber. 5. The method of claim 4, Wherein the pressing member expands by the air injection so that the pressing member covers each side of the material to be treated. The method of claim 3, Wherein each of the plurality of laminators includes a susceptor conveyor mounted on the susceptor to transfer the material to be processed. The method according to claim 1, The lifting device comprises: A motor for generating a driving force; A plurality of power transmitting fins connected to the protrusions of the plurality of upper body side surfaces and lifting the upper body by the driving force; Power transmission means for transmitting the driving force to the plurality of power transmission pins; The laminating system comprising: The method according to claim 1, Wherein the lifting device simultaneously elevates and lifts the upper body of the plurality of laminators. The method according to claim 1, Wherein each of the plurality of stages includes a bottom frame on which the plurality of laminators are housed, and four pillars provided on an edge of the bottom frame. A first step of loading a plurality of materials to be processed onto a supply member; The upper body of each of a plurality of laminators independently loaded on each of a plurality of stages of the laminating cassette is lifted by using a lifting device to separate the upper body of the laminator from the lower body of the laminator, The upper body and the lower body are coupled by lowering the upper body by using the lifting device after supplying the plurality of laminators from the supply member to each of the plurality of laminators, A second step of performing a laminating process; A third step of transferring the plurality of to-be-processed materials from the plurality of laminators to a carry-out member; Wherein the laminating method comprises the steps of: 12. The method of claim 11, In the first step, Loading the plurality of to-be-processed materials on a drawing conveyor; Loading the plurality of the processed materials from the drawing conveyor onto a plurality of feeding supports of the loading cassette; Wherein the laminating method comprises the steps of: 12. The method of claim 11, Wherein the lifting device simultaneously elevates the upper body of the plurality of laminators. 14. The method of claim 13, Expelling an expansion space defined by the upper body and the lower body coupled to each other and inflating a compression member positioned in the expansion space and injecting air to compress each of the plurality of materials to be processed; Heating the susceptor located on the lower body by a heater in the susceptor and thermally pressing the material to be processed located on the susceptor; Heat treating the material to be treated; Cooling the material to be treated; Injecting air into the expansion space and exhausting the compression member; Wherein the laminating method comprises the steps of: 15. The method of claim 14, Wherein the material to be treated is a solar cell module in which a solar cell, an adhesive on the solar cell, and a protective member are laminated on the adhesive, the pressure of the expansion space is 0.5 torr, the air pressure injected into the compression member is 5 kg / lt; RTI ID = 0.0 > cm3. < / RTI > 12. The method of claim 11, In the third step, Loading the plurality of processed materials from the laminating cassette onto a plurality of unloading supports of the unloading cassettes; Loading the plurality of materials to be processed from the plurality of take-out supports onto the take-out conveyor; Wherein the laminating method comprises the steps of: delete delete delete delete delete delete delete delete delete delete delete delete

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