Lamination And Separation Device for Solar Cell Substrates

Abstract

The present invention relates to a stacking and separating device for solar cell substrates that aligns a plurality of solar cell substrates drawn from a cassette so that the back surfaces of two pairs of solar cell substrates are in contact with each other (back-to-back) before being transferred to a designated process position, and separates and aligns the pairs of solar cell substrates with their back surfaces in contact with each other after the process is completed, before storing them in a cassette. The invention further relates to a stacking and separating device for solar cell substrates that can significantly improve productivity by flipping a plurality of solar cell substrates 180 degrees at once to stack two solar cell substrates so that their back surfaces are in contact with each other (back-to-back) to form pairs of solar cell substrates, and by separating and realigning the pairs of solar cell substrates with their back surfaces in contact with each other after the process is completed, before storing them in a cassette.

Description

Technology Field

[0001] The present invention relates to a stacking and separation device for solar cell substrates, wherein a plurality of solar cell substrates drawn from a cassette are aligned so that the back surfaces of two sets of solar cell substrates are in contact with each other (back-to-back) before being transferred to a designated process position, and the two sets of solar cell substrates with their back surfaces in contact with each other are separated and aligned before being placed in a cassette after the process is completed. Background Technology

[0002] Generally, solar cells generate power by creating electron-hole pairs within the semiconductor due to external light, and then moving electrons to the n-type semiconductor and holes to the p-type semiconductor through the electric field generated at the pn junction.

[0003] During the process of manufacturing solar cells, various substrate treatment processes, such as texturing or deposition, are performed on the surface of the solar cell substrate to reduce optical losses.

[0004] However, conventional solar cell manufacturing systems are configured to process solar cell substrates one by one using a predetermined process, so there are limitations in improving manufacturing yield.

[0005] Korean Registered Patent No. 10-2743431 discloses a solar cell substrate inversion and stacking system that allows for simultaneous process treatment on the surfaces of two solar cell substrates at once in a subsequent process by flipping one solar cell substrate 180 degrees during the process of transporting the solar cell substrates and stacking it on another solar cell substrate, thereby supplying it to a subsequent process.

[0006] However, the aforementioned inversion and stacking system for solar cell substrates is configured to alternately flip the solar cell substrates 180 degrees and overlap them during the process of transporting the solar cell substrates, which reduces the transport speed of the solar cell substrates and limits the effect of improving productivity. Prior art literature

[0007] Korean Registered Patent No. 10-2374673 (Registered March 10, 2022) Korean Registered Patent No. 10-1048289 (Registered July 5, 2011) Korean Registered Patent No. 10-2743431 (Registered December 11, 2024) The problem to be solved

[0008] The present invention aims to solve the aforementioned conventional problems, and the objective of the present invention is to provide a stacking and separation device for solar cell substrates that can significantly improve productivity by flipping a plurality of solar cell substrates 180 degrees at once so that the back surfaces of a plurality of pairs of solar cell substrates come into contact with each other (back-to-back), and by separating and realigning the plurality of pairs of solar cell substrates that have completed the process into individual pieces before storing them in a cassette.

[0009] Another objective of the present invention is to provide a stacking and separation device for solar cell substrates that can perform an alignment function while contacting only the edge portions of the solar cell substrates. means of solving the problem

[0010] A stacking and separating device for a solar cell substrate according to the present invention for achieving the above-mentioned purpose comprises: a base; a lower support member and first and second side support members, which are installed to be movable up, down, and sideways by a first driving unit, and have a plurality of support grooves arranged in one direction in which the lower edge and both side edges of a first solar cell substrate that is not inverted and a second solar cell substrate inverted 180 degrees are inserted and seated at a certain distance from each other. A lower alignment and separation member and a first and second side alignment and separation member, each having a plurality of alignment protrusions arranged in one direction, which are installed to be movable up and down and sideways by a second driving unit on one side of the lower support member and the first and second side support members, respectively, and formed to protrude in a '∧' shape at a position corresponding to the plurality of support grooves, and which support the lower and both edge portions of the first solar cell substrate and the second solar cell substrate respectively between one side and the other side of the support groove, and also function to spread apart the first and second solar cell substrates while entering into the inner edge of the first and second solar cell substrates that are overlapped with each other; and, a lower stacking member and a first and second side stacking member are each installed to be movable up and down and sideways by a third driving unit on one side of the lower alignment and separation member and the first and second side alignment and separation members, and a plurality of laminating grooves are formed in a 'V' shape at positions corresponding to the plurality of support grooves and arranged in one direction to overlap a first solar cell substrate and a second solar cell substrate that are spaced apart from each other.

[0011] The lower stacking member and the first and second side stacking members can move in opposite directions simultaneously with the lower alignment and separation member and the first and second side alignment and separation member to gather and overlap the bottom and both side edge portions of the first solar cell substrate and the second solar cell substrate, or spread apart the first solar cell substrate and the second solar cell substrate that are overlapped with each other.

[0012] The stacking and separation device for a solar cell substrate according to the present invention may further include an air injection nozzle that sprays compressed air toward the edges of the first solar cell substrate and the second solar cell substrate that are overlapped with each other when the lower alignment and separation member and the first and second side alignment and separation members move in the upward and inward directions, respectively, thereby separating the edges of the first solar cell substrate and the second solar cell substrate from each other.

[0013] The above air injection nozzle can be integrally formed in the center of the support groove of the lower support member and the first and second side support members.

[0014] Alternatively, the air injection nozzle may be integrally formed with the alignment protrusions of the lower alignment and separation member and the first and second side alignment and separation members.

[0015] The support grooves of the lower support member and the first and second side support members may be in the shape of trapezoidal grooves. Effects of the invention

[0016] According to the present invention, a plurality of solar cell substrates can be stacked in pairs by simultaneously moving the inverted ones and the non-inverted ones in each other's directions, and the edge portions of the plurality of pairs of solar cells stacked in pairs can be spread apart without damage and aligned at regular intervals.

[0017] Therefore, it is possible to stack and separate multiple solar cell substrates in a short period of time, which has the advantage of improving work efficiency and productivity.

[0018] In addition, since the stacking and separation of solar cell substrates can be performed by making line contact only at the edge portions without surface contact between multiple solar cell substrates, the stacking and separation operations can be performed stably without damaging the surface of the substrate.

[0019] In particular, when separating pairs of stacked solar cell substrates, compressed air can be injected through an air injection nozzle before the alignment protrusions come into contact with the edges of the solar cell substrates to separate the edges of the two solar cell substrates, thereby preventing excessive force from being applied when the alignment protrusions come into direct contact with the edges of the solar cell substrates and minimizing the possibility of damage to the solar cell substrates. Brief explanation of the drawing

[0020] FIGS. 1a and FIGS. 1b are perspective views of a stacking and separation device for a solar cell substrate according to one embodiment of the present invention. FIG. 2 is a front view of the stacking and separation device of the solar cell substrate shown in FIG. 1. FIG. 3 is a perspective view of a part of the stacking and separation device of the solar cell substrate shown in FIG. 1. FIG. 4a is a perspective view showing an example in which an air injection nozzle is configured on a lower support member constituting a stacking and separation device for a solar cell substrate illustrated in FIG. 1. FIG. 4b is a perspective view showing an example in which an air injection nozzle is configured in the lower alignment and separation member constituting the stacking and separation device of the solar cell substrate illustrated in FIG. 1. FIGS. 5a to 5e are drawings sequentially showing examples of overlapping operation of solar cell substrates by the stacking and separation device of solar cell substrates illustrated in FIG. 1. FIGS. 6a to 6f are drawings sequentially showing examples of the separation operation of solar cell substrates by the stacking and separation device of solar cell substrates illustrated in FIG. 1. Specific details for implementing the invention

[0021] A stacking and separation apparatus for solar cell substrates according to an embodiment of the present invention will be described in detail with reference to the attached drawings. Since the present invention is susceptible to various modifications and may take various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed forms, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. Similar reference numerals have been used for similar components in the description of each drawing.

[0022] Additionally, terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. Meanwhile, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0023] To aid understanding, the direction in which the solar cell substrate is transported in a solar cell substrate transport device is defined as the Y-axis direction, the direction horizontally orthogonal to it is defined as the X-axis direction, and the direction vertically orthogonal to the Y-axis and X-axis is defined as the Z-axis direction for explanation.

[0024] FIGS. 1 to 6 shows a stacking and separating device for a solar cell substrate according to one embodiment of the present invention, which may include a base (100), a lower support member (210) and first and second side support members (220, 230), a lower alignment and separation member (310) and first and second side alignment and separation members (320, 330), and a lower stacking member (410) and first and second side stacking members (420, 430).

[0025] The base (100) is a support structure that is fixed to a floor surface or a fixed structure and supports components constituting a stacking and separating device for solar cell substrates, and can be constructed by assembling a frame, a plate, a shaft, etc. On both sides of the base (100), a plurality of base shafts (110) on which the first and second side support members (220, 230), the first and second side alignment and separation members (320, 330), and the first and second side stacking members (420, 430) are installed are installed vertically with respect to the ground.

[0026] A plurality of lower mount frames (111) and a plurality of side mount frames (112) are installed on the upper and side base shafts (110) of the base (100), on which a first drive unit, a second drive unit, and a third drive unit are installed.

[0027] The lower support member (210) and the first and second side support members (220, 230) are installed to be movable up and down and sideways by the first driving unit, and may have a long bar or block shape in which a plurality of support grooves (211) are arranged in one direction, into which the lower edge and both sides of the first solar cell substrate (S1) that is not inverted and the second solar cell substrate (S2) that is inverted 180 degrees are inserted and seated at a certain distance.

[0028] On the upper surface of the lower support member (210), a plurality of support grooves (211) are arranged at regular intervals along the longitudinal direction, on which the lower end of the solar cell substrate (S) is seated. The support grooves (211) may have a trapezoidal shape with inclined sides and a flat bottom surface so that only the edge portion of the solar cell substrate (S) can be supported.

[0029] The lower support member (210) may be configured as a single unit in the center of the base (100), but may also be configured as two or more units to stably support the lower part of the solar cell substrate (S) as in this embodiment.

[0030] The first side support member (220) and the second side support member (230) are each installed side by side on both sides of the base (100), and a plurality of support grooves (211) that support the two edge portions of the solar cell substrate (S) are arranged at regular intervals along the longitudinal direction on the inner surface. The support grooves (211) of the lower support member (210), the first side support member (220), and the second side support member (230) are formed to have the same shape and size at the same location, thereby simultaneously supporting the bottom edge and both edges of the solar cell substrate (S).

[0031] The lower support member (210), the first side support member (220), and the second side support member (230) are simultaneously moved toward the solar cell substrate (S) or toward the solar cell substrate (S) by the first driving unit. The first driving unit includes a first lower actuator (241) installed on one of the lower mount frames (111) of the base (100) to move the lower support member (210) in a straight reciprocating motion a certain distance in the up-and-down direction, and a first side actuator (242) and a second side actuator (243) installed on one of the side mount frames (112) on both sides to move the first side support member (220) and the second side support member (230) in a straight reciprocating motion in the lateral direction.

[0032] The first lower actuator (241), the first side actuator (242), and the second side actuator (243) may be configured by applying a cylinder equipped with a piston rod that moves in a straight line by the pressure of a fluid such as air or oil, or a known linear motion device that applies a motor and a converter that converts the rotational force of the motor into linear motion and transmits it, or a linear motor, etc.

[0033] The lower alignment and separation member (310) and the first and second side alignment and separation members (320, 330) are each installed to be movable up and down and sideways by a second driving unit on one side of the lower support member (210) and the first and second side support members (220, 230), respectively, and are configured to support the lower edge and both side edges of a plurality of solar cell substrates (S) together with the lower support member (210) and the first and second side support members (220, 230), and to function to spread out the lower edge and both side edges of a set of two solar cell substrates (S) that are stacked on top of each other.

[0034] The lower alignment and separation member (310) and the first and second side alignment and separation members (320, 330) are formed in the shape of a long bar or block and are installed side by side on one side of the lower support member (210) and the first and second side support members (220, 230), respectively. On the upper surface of the lower alignment and separation member (310) and the inner surface of the first and second side alignment and separation members (320, 330), a plurality of alignment protrusions (311) are formed to protrude in an '∧' shape at a position corresponding to the plurality of support grooves (211), and are arranged in one direction to support the lower edge and both edge portions of the solar cell substrates (S) between one side and the other side of the support grooves (211), and to function to spread them apart while entering into the inner edge of two solar cell substrates (S) that are overlapped with each other.

[0035] The pitch of the plurality of alignment protrusions (311) and the pitch of the plurality of support grooves (211) can be formed identically.

[0036] When the plurality of alignment protrusions (311) function to spread the edges of two overlapping solar cell substrates (S) by entering into the inner edge of the two overlapping solar cell substrates (S), compressed air is sprayed toward the edge just before the alignment protrusions (311) enter into the inner edge of the two solar cell substrates (S) so that the overlapping edges are separated by air pressure and the ends of the alignment protrusions (311) can smoothly enter into the inner edge, as shown in FIG. 4a, at least one air injection nozzle (500) may be integrally formed in the center of the support groove (211) of the lower support member (210) and the first and second side support members (220, 230).

[0037] The air injection nozzle (500) is connected to an air passage (not shown) formed inside the lower support member (210) and the first and second side support members (220, 230), and the air passage is connected to an external compressed air supply device (e.g., an air pump or an air compressor) to receive compressed air and deliver it to the air injection nozzle (500) of the support groove (211).

[0038] In this way, an air injection nozzle (500) is formed in the center of the bottom surface of the support groove (211), so that when the alignment protrusions (311) of the lower alignment and separation member (310) and the first and second side alignment and separation members (320, 330) move toward the edge of the two solar cell substrates (S) that are overlapping each other and enter into the edge, the edges of the two solar cell substrates (S) are spread apart, thereby preventing the edges of the solar cell substrates (S) from colliding with the ends of the alignment protrusions (311) and being damaged or broken.

[0039] In this embodiment, the air injection nozzle (500) is formed in the support groove (211) of the lower support member (210) and the first and second side support members (220, 230) and is configured to inject compressed air onto the edges of two solar cell substrates (S) seated on the support groove (211). However, as shown in another embodiment in FIG. 4b, at least one air injection nozzle (500) can be integrally formed at the end of the alignment projection (311) of the lower alignment and separation member (310) and the first and second side alignment and separation members (320, 330). At this time, the air injection nozzle (500) can be installed inside the nozzle groove (312) that is concavely formed at the end of each alignment projection (311). The air injection nozzle (500) is connected to an air passage (not shown) formed on the inner side of the lower alignment and separation member (310) and the first and second side alignment and separation members (320, 330), and the air passage is connected to an external compressed air supply device (e.g., an air pump or an air compressor) to receive compressed air and transmit it to the air injection nozzle (500) of the alignment projection (311).

[0040] Referring to FIGS. 1 to 3, the lower alignment and separation member (310) and the first and second side alignment and separation members (320, 330) are simultaneously moved toward the solar cell substrate (S) or toward the solar cell substrate (S) by the second driving unit. The second driving unit includes a second lower actuator (341) installed on one of the lower mount frames (111) of the base (100) to move the lower alignment and separation member (310) in a straight reciprocating motion a certain distance in the up-and-down direction, and a third side actuator (342) and a fourth side actuator (343) installed on one of the side mount frames (112) on both sides to move the first side alignment and separation member (320) and the second side alignment and separation member (330) in a straight reciprocating motion in the lateral direction, respectively.

[0041] The second lower actuator (341), the third side actuator (342), and the fourth side actuator (343) may be configured by applying a cylinder equipped with a piston rod that moves in a straight line by the pressure of a fluid such as air or oil, or a known linear motion device that applies a motor and a converter that converts the rotational force of the motor into linear motion and transmits it, or a linear motor, etc.

[0042] The lower stacking member (410) and the first and second side stacking members (420, 430) are each installed to be movable up and down and sideways by a third driving unit on one side of the lower alignment and separation member (310) and the first and second side alignment and separation members (320, 330), respectively, and are configured to function to overlap as they enter the lower edge and both side edges of two solar cell substrates (S) that are supported with a gap on both sides of the support grooves (211) of the lower support member (210) and the first and second side support members (220, 230).

[0043] The lower stacking member (410) and the first and second side stacking members (420, 430) are formed in the shape of a long bar or block and are installed side by side on one side of the lower alignment and separation member (310) and the first and second side alignment and separation members (320, 330), respectively. On the upper surface of the lower stacking member (410) and the inner surface of the first and second side stacking members (420, 430), a plurality of laminating grooves (411) are arranged in one direction and are formed in a 'V' shape at a position corresponding to the plurality of support grooves (211), and have the function of bringing the two solar cell substrates (S) together and overlapping while contacting the edges of the two solar cell substrates (S) that are supported at a certain distance from each support groove (211).

[0044] The pitches of the plurality of laminating grooves (411), the plurality of alignment protrusions (311), and the plurality of support grooves (211) can all be formed identically. The upper width of the laminating groove (411) is slightly larger than or nearly identical to the lower width of the support groove (211).

[0045] The lower stacking member (410) and the first and second side stacking members (420, 430) are moved simultaneously toward the solar cell substrate (S) or toward the solar cell substrate (S) by a third driving unit. For this purpose, the third driving unit includes a third lower actuator (441) installed on one of the lower mount frames (111) of the base (100) to move the lower stacking member (410) in a straight reciprocating motion a certain distance in the up-and-down direction, and a fifth side actuator (442) and a sixth side actuator (443) installed on one of the side mount frames (112) on both sides to move the first side stacking member (420) and the second side stacking member (430) in a straight reciprocating motion in the lateral direction, respectively.

[0046] The third lower actuator (441), the fifth side actuator (442), and the sixth side actuator (443) may be configured by applying a cylinder equipped with a piston rod that moves in a straight line by the pressure of a fluid such as air or oil, or a known linear motion device that applies a motor and a converter that converts the rotational force of the motor into linear motion and transmits it, or a linear motor, etc.

[0047] The operation of the stacking and separation device for the solar cell substrate configured as described above will be explained in detail below.

[0048] First, referring to FIGS. 5a to 5e, the operation of stacking two sheets at a time by bringing the back surfaces of a plurality of solar cell substrates (S) back-to-back will be explained.

[0049] Referring to FIG. 5a, initially, the lower support member (210), the first and second side support members (220, 230), the lower alignment and separation member (310), and the first and second side alignment and separation members (320, 330) are waiting in a raised position and in a position moved inward (a direction adjacent to the solar cell substrate), and the lower stacking member (410) and the first and second side stacking members (420, 430) are waiting in a lowered position and in a position moved outward (a direction away from the solar cell substrate).

[0050] A transfer robot (not shown) grasps an odd-numbered or even-numbered solar cell substrate (S) among a plurality of solar cell substrates (S) stored in a cassette (not shown) and pulls it out of the cassette, and then places a plurality of solar cell substrates (S) on one side of a plurality of support grooves (211) of a lower support member (210) and first and second side support members (220, 230). At this time, the alignment protrusions (311) of the lower alignment and separation member (310) and the first and second side alignment and separation members (320, 330) are positioned at the center of the support groove (211) from one side of the support groove (211), so that both sides of the edge portion of the solar cell substrate (S) are stably supported between the inclined side of the support groove (211) and the inclined side of the alignment protrusion (311), thereby maintaining an upright posture. Here, the solar cell substrate (S) supported on the support groove (211) is described as the first solar cell substrate (S1).

[0051] Next, the transfer robot (not shown) grasps the remaining plurality of solar cell substrates (S) stored in the cassette (not shown), extracts them from the cassette, flips them 180 degrees to invert the upper and lower surfaces, and then inserts the inverted solar cell substrate (S) into the other side of the support groove (211) of the lower support member (210) and the first and second side support members (220, 230) to be supported. Here, the solar cell substrate (S) with its upper and lower inverted orientation is described as the second solar cell substrate (S2).

[0052] At this time, a first solar cell substrate (S1) and a second solar cell substrate (S2) are supported at a constant distance in each of the plurality of support grooves (211) formed in the lower support member (210) and the first and second side support members (220, 230).

[0053] Next, as illustrated in FIGS. 5b to 5c, the lower stacking member (410) and the first and second side stacking members (420, 430) are simultaneously moved horizontally upward and inward by the operation of the third lower actuator (441) and the fifth and sixth side actuators (442, 443) and move toward the first and second solar cell substrates (S1, S2).

[0054] And, the lower alignment and separation member (310) and the first and second side alignment and separation members (320, 330) are horizontally moved downward and outward in the opposite direction to the lower stacking member (410) and the first and second side stacking members (420, 430) and are separated from the first and second solar cell substrates (S1, S2).

[0055] When the upper and inner ends of the lower stacking member (410) and the first and second side stacking members (420, 430) pass through a position corresponding to the lower and outer ends of the support groove (211), as shown in FIG. 5d, the edges of the first solar cell substrate (S1) and the second solar cell substrate (S2) come into contact with the inclined surfaces on both sides of the laminating groove (411) and are guided by the inclined surfaces and come together, and eventually the back surfaces of the first solar cell substrate (S1) and the second solar cell substrate (S2) come into contact with each other and overlap.

[0056] Next, as shown in FIG. 5e, the lower support member (210) and the first and second side support members (220, 230) move downward and outward so as to be separated from the edges of the first solar cell substrate (S1) and the second solar cell substrate (S2).

[0057] Afterwards, the transfer robot grasps a plurality of pairs of first solar cell substrates (S1) and second solar cell substrates (S2) supported in the laminating grooves (411) of the lower stacking member (410) and the first and second side stacking members (420, 430) and transfers them to a designated substrate processing location.

[0058] Next, the operation of separating pairs of stacked solar cell substrates (S1, S2) that have been processed in the substrate processing process will be explained with reference to FIGS. 6a to 6f.

[0059] In the substrate processing process, a plurality of pairs of first solar cell substrates (S1) and second solar cell substrates (S2) that have been processed are picked up by a transfer robot and moved onto a base (100).

[0060] When the transfer robot places a pair of first and second solar cell substrates (S1, S2) stacked in pairs onto the laminating grooves (411) of the lower stacking member (410) and the first and second side stacking members (420, 430) (see FIG. 6a), as shown in FIG. 6b and 6c, the lower support member (210) and the first and second side support members (220, 230) move upward and inward to support the pair of first and second solar cell substrates (S1, S2) while in contact with the edge portions.

[0061] Next, as illustrated in FIG. 6d, the lower stacking member (410) and the first and second side stacking members (420, 430) move downward and outward, while the lower alignment and separation member (310) and the first and second side alignment and separation members (320, 330) move upward and inward.

[0062] At this time, before the end portion of the alignment protrusion (311) of the lower alignment and separation member (310) and the first and second side alignment and separation members (320, 330) comes into contact with the edge portion of the first and second solar cell substrates (S1, S2), compressed air is sprayed through the air injection nozzle (500) formed on the alignment protrusion (311) to spread the edge portion of the first and second solar cell substrates (S1, S2).

[0063] The end portion of the alignment projection (311) is inserted through the gap in the edge portion of the pair of first and second solar cell substrates (S1, S2), and the inclined surfaces on both sides come into contact with the edge portions of the first and second solar cell substrates (S1, S2) to separate the first solar cell substrate (S1) and the second solar cell substrate (S2) (see FIG. 6e and FIG. 6f).

[0064] When the solar cell substrates (S) stacked in this manner are all separated and aligned at regular intervals, a transfer robot simultaneously grasps the solar cell substrates (S), moves them to a cassette, and then inserts them into the cassette.

[0065] As described above, the stacking and separation device for solar cell substrates of the present invention can stack a plurality of solar cell substrates (S) in a double-sided manner by moving the inverted ones and the non-inverted ones in opposite directions simultaneously, and can spread the edge portions of the plurality of pairs of solar cells stacked in double-sided manner without damage and align them at a certain interval.

[0066] Therefore, there is an advantage in that multiple solar cell substrates (S) can be stacked and separated in a short time, thereby improving work efficiency and productivity.

[0067] In addition, the stacking and separation of solar cell substrates (S) can be performed by making line contact only at the edge portions without surface contact between multiple solar cell substrates (S).

[0068] Although the detailed description of the present invention described above has been explained with reference to preferred embodiments of the invention, those skilled in the art or those with ordinary knowledge in the art will understand that various modifications and changes can be made to the invention without departing from the spirit and technical scope of the invention as set forth in the claims below. Explanation of the symbols

[0069] S : Solar cell substrate 100 : Base 210: Lower support member 211: Support groove 220: First side support member 230: Second side support member 310: Lower alignment and separation member 311: Alignment projection 320: First lateral alignment and separation member 330: Second lateral alignment and separation member 410 : Lower laminated member 411 : Laminating groove 420: First side laminated member 430: Second side laminated member 500 : Air injection nozzle

Claims

Claim 1 A base; a lower support member and first and second side support members, each having a plurality of support grooves arranged in one direction, which are installed to be movable up, down, and sideways by a first driving unit, and into which the bottom edge and both side edges of a first solar cell substrate that is not inverted and a second solar cell substrate inverted 180 degrees are inserted and seated at a certain distance; and a lower alignment and separation member and first and second side members, each having a plurality of alignment protrusions arranged in one direction, which are installed to be movable up, down, and sideways by a second driving unit on one side of the lower support member and the first and second side support members, respectively, and are formed to protrude in an '∧' shape at positions corresponding to the plurality of support grooves, and which support the bottom and both side edge portions of the first solar cell substrate and the second solar cell substrate, respectively, between one side and the other side of the support groove, and function to spread apart the first and second solar cell substrates by entering into the inner edge of the first and second solar cell substrates that are overlapped with each other. A stacking and separation device for solar cell substrates comprising: an alignment and separation member; and a lower stacking member and a first and second side stacking member, each installed to be movable up and down and sideways by a third driving member on one side of the lower alignment and separation member and the first and second side alignment and separation members, and having a plurality of laminating grooves arranged in one direction that are formed in a 'V' shape at a position corresponding to the plurality of support grooves to overlap a first solar cell substrate and a second solar cell substrate spaced apart from each other. Claim 2 A solar cell substrate stacking and separation device according to claim 1, wherein the lower stacking member and the first and second side stacking members move in opposite directions simultaneously with the lower alignment and separation member and the first and second side alignment and separation members to gather and overlap the bottom and both side edge portions of the first solar cell substrate and the second solar cell substrate, or to spread apart the first solar cell substrate and the second solar cell substrate that are overlapped with each other. Claim 3 A solar cell substrate stacking and separation device according to claim 2, further comprising an air injection nozzle that sprays compressed air toward the edges of the first solar cell substrate and the second solar cell substrate that are overlapped with each other when the lower alignment and separation member and the first and second side alignment and separation members move in the upward and inward directions, respectively, thereby separating the edges of the first solar cell substrate and the second solar cell substrate. Claim 4 In paragraph 3, the air injection nozzle is a stacking and separating device for a solar cell substrate integrally formed in the center of the support groove of the lower support member and the first and second side support members. Claim 5 In paragraph 3, the air injection nozzle is a stacking and separation device for a solar cell substrate formed integrally with the alignment protrusions of the lower alignment and separation member and the first and second side alignment and separation members. Claim 6 A stacking and separating device for a solar cell substrate according to claim 1, wherein the support grooves of the lower support member and the first and second side support members are in the shape of trapezoidal grooves.

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