Lap joint device and lap joint method

Abstract

The lapping device may be a lapping device comprising: a stage for supporting a solar cell and a wire clamp; the wire clamp conveying device is used for conveying the wire clamp to the table; the wire conveying device is adjacent to the wire clamp conveying device and conveys the wire; and a battery jig transfer device positioning the solar cell and the wire jig on the wire supported by the wire transfer device, in which the battery jig transfer device includes: a main body spindle; and a plurality of main bodies which are rotated by the main body main shaft, support the solar cell and the wire clamp on the table, and position the solar cell and the wire clamp on the wire on the wire conveying device, and the plurality of main bodies alternately perform an operation of supporting the solar cell and the wire clamp while rotating around the main body main shaft and an operation of positioning the solar cell and the wire clamp on the wire.

Description

Technical Field

[0001] The present invention relates to a lapping device and a lapping method. Background Art

[0002] A solar cell (i.e., a solar battery) includes a substrate and a diode formed on the substrate by a p-n junction. When the solar cell is irradiated with sunlight, excitons as electron-hole pairs are generated, and as the excitons are separated, electrons move to the n-layer and holes move to the p-layer, thereby generating photovoltaic power at the p-n junction. A junction is a process of forming a single solar cell module by arranging wires on a plurality of solar cells to electrically connect the plurality of solar cells.

[0003] Generally, in a state where a solar cell is placed on a wire, a lapping device joins the solar cell to the wire. While the wire is being conveyed in one direction by a wire conveying device, the solar cell is positioned on the wire to connect the solar cell and the wire. Additionally, in the process of connecting the solar cell and the wire, a wire jig is positioned on the wire to apply pressure to the wire, thereby preventing the wire from detaching or deviating from a specified position. In this way, a cell jig conveying device positions the solar cell and the wire jig on the wire.

[0004] However, a conventional cell jig conveying device must go through two steps: first pick up one of the solar cell and the wire jig, place it on the wire, and then return to the initial position to pick up the remaining one and position it on the wire. Therefore, there is a problem that the entire process is delayed because it takes a long time to position the solar cell and the wire jig on the wire.

[0005] Meanwhile, when such a conveying device is linearly configured, the conveying device that has picked up the solar cell and the jig must position the solar cell and the jig on the wire and then return to the initial state to pick up the solar cell and the jig. In other words, since the picking and positioning operations must be performed sequentially, there are limitations in increasing the speed of the solar cell manufacturing process.

[0006] In addition, the lapping device includes a device for providing a solar cell, a device for receiving and aligning the solar cell, inspecting the solar cell and then cutting (scoring) the solar cell into a desired size, and a device for discharging defective solar cells. A conventional lapping device uses a SCARA robot that moves along orthogonal axes to provide the solar cell and perform the alignment and inspection processes and the cutting process. Therefore, the overall size of the lapping device increases, and since each process is performed sequentially, the lapping process takes a long time. Summary of the Invention

[0007] Technical Problem

[0008] The tabbing device and tabbing method can simultaneously convey a solar cell and a wire fixture. Additionally, by configuring multiple conveying devices to be rotary, the time and cost required for manufacturing a solar cell module can be reduced.

[0009] The tabbing device and tabbing method can reduce the time required to convey a solar cell while reducing the size of the tabbing device by using a rotary indexing table.

[0010] Technical solution

[0011] The tabbing device includes: a stage configured to support a solar cell and a wire fixture; a wire fixture conveying device configured to convey the wire fixture to the stage; a wire conveying device adjacent to the wire fixture conveying device and configured to convey a wire; and a cell fixture conveying device configured to position the solar cell and the wire fixture on the wire supported by the wire conveying device. Among them, the cell fixture conveying device includes a body spindle and a plurality of bodies. The plurality of bodies rotate through the body spindle, support the solar cell and the wire fixture on the stage, and position the solar cell and the wire fixture on the wire on the wire conveying device. And the plurality of bodies alternately perform the operations of supporting the solar cell and the wire fixture while rotating around the body spindle and positioning the solar cell and the wire fixture on the wire.

[0012] Each of the plurality of bodies can support different sets of solar cells and wire fixtures.

[0013] The cell fixture conveying device can position any one of the plurality of bodies on the stage and position the other bodies above the wire conveying device. And when one body supports the solar cell and the wire fixture above the stage, the other bodies can simultaneously position the solar cell and the wire fixture on the wire on the wire conveying device.

[0014] The plurality of bodies can include a first body and a second body facing each other with the body spindle as the center. The first body and the second body can support different sets of solar cells and wire fixtures. And when the first body positions a set of solar cells and wire fixtures on the wire, the second body can simultaneously support another set of solar cells and wire fixtures positioned on the stage.

[0015] Each of the plurality of bodies can simultaneously support a set of solar cells and wire fixtures, or can simultaneously position a set of solar cells and wire fixtures on the wire.

[0016] The lapping device may include: an index table including a table spindle and a plurality of table supports configured to rotate around the table spindle; a first solar cell transfer device configured to transfer solar cells to the index table; and a solar cell supply device configured to transfer solar cells from the first solar cell transfer device to the index table. The index table may include a solar cell alignment device, a solar cell inspection device, and a solar cell splitting device respectively positioned corresponding to the plurality of table supports, and the index table may move the solar cells transferred from the first solar cell transfer device to the solar cell alignment device, the solar cell inspection device, and the solar cell splitting device while rotating at a predetermined angle.

[0017] The first solar cell transfer device may transfer solar cells to the table support corresponding to the solar cell alignment device among the plurality of table supports, and the index table may sequentially move the solar cells to the solar cell inspection device and the solar cell splitting device while rotating around the table spindle.

[0018] When the solar cell alignment device completes the alignment process, the index table may rotate to move the aligned solar cells to the solar cell inspection device, and the first solar cell transfer device may move the solar cells to the support corresponding to the solar cell alignment device.

[0019] The index table may support one or more solar cells simultaneously, and at least two of the solar cell alignment device, the solar cell inspection device, and the solar cell splitting device may operate simultaneously.

[0020] The plurality of table supports may include four table supports orthogonal to each other centered on the table spindle, and the index table may rotate in 90-degree units.

[0021] When the transferred solar cells are positioned on the table supports, the solar cell alignment device may check and correct the positions of the solar cells, the solar cell inspection device may check whether the solar cells after position correction are defective, and the solar cell splitting device may split the solar cells determined to be good products by the solar cell inspection device into a predetermined size.

[0022] The indexing table may further include a solar cell discharging device, which is located on the opposite side of the solar cell inspection device centered on the table spindle and configured to discharge the solar cells of the products determined to be defective to the outside of the lapping device. When the solar cell inspection device determines that the solar cell is a good product, the solar cell splitting device may split the solar cell, and when the solar cell inspection device determines that the solar cell is a defective product, the solar cell splitting device may not split the solar cell, and the solar cell discharging device may discharge the solar cell.

[0023] The solar cell alignment device and the solar cell splitting device may be located on opposite sides centered on the table spindle.

[0024] The solar cell supply device may include: a support shaft; a plurality of support frames configured to extend from the support shaft in different directions; and a plurality of holders respectively connected to the plurality of support frames to support the solar cells, and any one of the plurality of holders may overlap with any one of the plurality of table supports of the indexing table.

[0025] The first solar cell transfer device may include two first solar cell transfer devices respectively corresponding to the solar cell supply device, and the plurality of support frames may include four support frames orthogonal to each other centered on the support shaft and may support two solar cells transferred from the first solar cell transfer device simultaneously.

[0026] The lapping method includes: supporting a set of solar cells and wire clamps supported on the table with any one of the main bodies through a battery jig transfer device including a plurality of main bodies; positioning the supported set of solar cells and wire clamps on the wires located on the wire transfer device by rotating the battery jig transfer device; and supporting another set of solar cells and wire clamps supported on the table with another one of the plurality of main bodies through the battery jig transfer device; wherein, the supporting of the solar cells and wire clamps and the positioning of the solar cells and wire clamps on the wires are repeated.

[0027] The transfer of the solar cells and wire clamps and the positioning of the solar cells and wire clamps on the wires may be performed simultaneously.

[0028] Before supporting a set of solar cells and wire clamps, the lapping method may further include: delivering solar cells from a first solar cell transfer device to an indexing table through a solar cell supply device; aligning the solar cells through a solar cell alignment device; inspecting the aligned solar cells through a solar cell inspection device to determine whether the solar cells are good products or defective products; dividing the solar cells determined to be good products through a solar cell dividing device; and between aligning the solar cells, inspecting the solar cells, and dividing the solar cells, while the indexing table rotates at a predetermined angle, sequentially moving the solar cells to the solar cell alignment device, the solar cell inspection device, and the solar cell dividing device positioned on the indexing table corresponding to a plurality of table supports.

[0029] At least two of aligning the solar cells, inspecting the solar cells, and dividing the solar cells can be performed simultaneously.

[0030] The lapping method may further include: when the solar cells are determined to be defective products during the inspection of the solar cells, discharging the solar cells to the outside through the solar cell discharging device of the indexing table.

[0031] Beneficial effects

[0032] In the lapping device and the lapping method, the cell clamp transfer device is configured to be rotary, so that the supporting and positioning operations of the solar cells and the wire clamps can be performed simultaneously. Therefore, the time required for the lapping process can be reduced, the size of the lapping device can be miniaturized, and the configuration can be simplified.

[0033] In the lapping device and the lapping method, since the lapping device includes a rotary indexing table, a series of processes for the solar cells can be performed more quickly, thereby shortening the time required for the lapping process and reducing the size of the lapping device. Description of the drawings

[0034] Figure 1 The lapping device is schematically shown.

[0035] Figure 2 and Figure 3 respectively show the main body of the cell clamp transfer device.

[0036] Figures 4 to 9 is a plan view showing the operation of the cell clamp transfer device.

[0037] Figure 10 shows the operation of the cell clamp transfer device.

[0038] Figure 11 The lapping device is schematically shown.

[0039] Figure 12 The solar cell supply device and the indexing table are shown.

[0040] Figures 13 to 17 The operations of the solar cell transfer device, the solar cell supply device, and the indexing table are shown.

[0041] Figure 18 and Figure 19 The solar cell transfer device and the indexing table are shown. Detailed implementation

[0042] The lapping device includes: a table configured to support a solar cell and a wire fixture; a wire fixture transfer device configured to transfer the wire fixture to the table; a wire transfer device adjacent to the wire fixture transfer device and configured to transfer a wire; and a cell fixture transfer device configured to position the solar cell and the wire fixture on the wire supported by the wire transfer device, wherein the cell fixture transfer device includes a main body spindle and a plurality of main bodies that rotate around the main body spindle, support the solar cell and the wire fixture on the table, and position the solar cell and the wire fixture on the wire on the wire transfer device, and the plurality of main bodies alternately perform the operation of supporting the solar cell and the wire fixture while rotating around the main body spindle and the operation of positioning the solar cell and the wire fixture on the wire.

[0043] Modes of the present invention

[0044] Hereinafter, the present disclosure will be described with reference to the embodiments shown in the drawings. The described embodiments are not limited to the content described in this specification and may have different forms. Therefore, the embodiments will be described only with reference to the drawings to explain the aspects and features of the present invention.

[0045] The present disclosure includes various embodiments and modification examples. Specific embodiments of the present disclosure are shown in the drawings and described below. However, the present disclosure is not limited to the embodiments and includes all modifications, equivalents, and alternatives included in the spirit and scope of the present invention.

[0046] When an element or layer is referred to as being “on” another element or layer, “connected” or “coupled” to another element or layer, the element or layer can be directly on the other element or layer, directly connected to, or directly coupled to the other element or layer. Alternatively, there can be one or more additional elements or layers. When an element or layer is referred to as being “directly on” another element or layer, “directly connected to,” “directly coupled to” another element or layer, there can be no other intermediate element or layer therebetween. For example, when a first element is described as being “connected to” or “coupled to” a second element, the first element can be directly coupled or directly connected to the second element, or the first element can be indirectly coupled or indirectly connected to the second element through one or more intermediate elements.

[0047] For clarity of illustration, the dimensions of various elements, layers, etc. in the drawings may be exaggerated. The same reference numerals may represent the same elements. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. Additionally, when describing embodiments of the present disclosure, the use of “may” pertains to “one or more embodiments of the present disclosure.” When located after a list of elements, recitations such as “at least one” and “any one” can modify the elements of the entire list rather than individual elements of the list. For example, the recitation “at least one of a, b, and c” can mean only a, only b, only c, both a and b, both a and c, both b and c, all of a, b, and c, or variations thereof. As used herein, the terms “use,” “using,” and “used” can be understood to be synonymous with the terms “utilize,” “utilizing,” and “utilized,” respectively. As used herein, the terms “substantially,” “about,” and similar terms are used as approximating terms and not as terms of degree, and are intended to account for the inherent deviations in the values being measured or calculated that would be recognized by a person of ordinary skill in the art.

[0048] Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers, and / or portions, these elements, components, regions, layers, and / or portions are not limited to these terms. These terms are used to distinguish one element, component, region, layer, or portion from another element, component, region, layer, or portion. Thus, without departing from the disclosure of the exemplary embodiments, the first element, first component, first region, first layer, or first portion discussed below can be named the second element, second component, second region, second layer, or second portion.

[0049] For ease of description, spatial relative terms such as "below", "downward", "above", "upward", etc. may be used herein to describe the relationship of one element or feature to another (or others) element or feature as depicted in the accompanying drawings. In addition to the orientation depicted in the drawings, spatial relative terms may include different orientations of the device during use or operation. For example, when the device in the drawings is flipped, an element described as "below" or "beneath" another element or feature may be oriented "above" or "on" another element or feature. Thus, the term "below" can include both upward and downward directions. The device may be oriented in different directions (e.g., rotated 90 degrees or in other orientations), and the spatial relative descriptors used herein should be interpreted accordingly.

[0050] The terms used in this specification are for describing embodiments of the present invention and are not intended to limit the present invention. The singular forms used in this specification may also include plural forms unless the context clearly indicates otherwise. When used herein, the terms "comprising", "having", and "including" specify particular features, wholes, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or groups thereof.

[0051] When an embodiment can be implemented as a process, a particular process order may be executed differently from the described order. For example, two processes described in sequence may be executed simultaneously or substantially simultaneously, or may be executed in the reverse order of the described order.

[0052] Figure 1 The lapping device 1 is schematically shown. Figure 2 and Figure 3 respectively show the main bodies 300 and 400 of the battery jig transfer device 10. Figures 4 to 9 is a plan view showing the operation of the battery jig transfer device 10, and Figure 10 shows the operation of the battery jig transfer device 10.

[0053] The lapping device 1 is a device for forming a solar cell module by connecting a solar cell C and a wire W. The solar cell C has a semiconductor junction region with a p-n junction surface, and when irradiated with more than a certain amount of energy, it generates an electromotive force that can convert light energy into electrical energy. The semiconductor material included in the solar cell C is not particularly limited, and silicon (monocrystalline silicon, polycrystalline silicon, and amorphous silicon), gallium arsenide, cadmium telluride, cadmium sulfide, indium phosphide, copper indium gallium selenide (CIGS), organic dyes, or mixtures thereof may be used.

[0054] The wire W is a conductor for electrically connecting multiple solar cells C to each other, and connects the front surface and the back surface of adjacent solar cells C. For example, the wire W can be electrically connected to the solar cell C through a soldering process. Alternatively, the wire W can be electrically connected to the solar cell C through a conductive adhesive (ECA).

[0055] The wire clamp J fixes the wire W so that when the solar cell C and the wire W are connected, the wire W will not come off or deviate from the designated position. For example, as Figure 1 shown, in a state where the wire W is positioned on the conveying member 41 of the wire conveying device 40, the wire clamp J can be positioned above the conveying member 41 to press the wire W. Here, the conveying member 41 can include a conveyor, a shuttle, etc. In addition, the wire clamp J can be supported and conveyed by the battery clamp conveying device 10.

[0056] As Figure 1 shown, the lapping device 1 can include a battery clamp conveying device 10, a first solar cell conveying device 20, a second solar cell conveying device 30, a wire conveying device 40, a conveying device 50, a joining device 60, and a wire clamp conveying device 70. For example, the lapping device 1 can include a stage 33 that supports the solar cell C and the wire clamp J, a wire clamp conveying device 70 that conveys the wire clamp J to the stage 33, a wire conveying device 40 that is adjacent to the wire clamp conveying device 70 and conveys the wire W, and a battery clamp conveying device 10 that positions the solar cell C and the wire clamp J on the wire supported by the wire conveying device 40.

[0057] The battery clamp conveying device 10 conveys the solar cell C and the wire clamp J. For example, the battery clamp conveying device 10 can pick up the solar cell C and the wire clamp J positioned on the stage 33, and then can move to the wire conveying device 40 to position the solar cell C and the wire clamp J on the wire W. This will be described below.

[0058] The first solar cell conveying device 20 receives the solar cell C from the outside and conveys the solar cell C. For example, the first solar cell conveying device 20 provided with the conveying member 41 can convey the solar cell C to the second solar cell conveying device 30. Here, the solar cell C can not be divided (scribed) into a predetermined size.

[0059] The second solar cell transfer device 30 can divide the solar cell C received from the first solar cell transfer device 20 into required sizes and quantities. For example, the second solar cell transfer device 30 includes a scriber 31, and the scriber 31 can divide the solar cell C into a plurality of workpieces using a laser or a mechanical method. In addition, the second solar cell transfer device 30 can include a stage 33 for supporting the solar cell C divided by the scriber 31. The stage 33 can move in the X-axis direction and the Y-axis direction, and can rotate in the θ direction, that is, rotate around the Z-axis. When the battery jig transfer device 10 picks up the solar cell C, the stage 33 can move while supporting the solar cell C to correct the position of the solar cell C.

[0060] A plurality of solar cells C and wire jigs J can be positioned on the stage 33. For example, the solar cell C divided by the scriber 31 can be positioned on the stage 33 by a transfer device (not shown). In addition, the wire jig J transferred by the wire jig transfer device 70 can also be positioned above the stage 33 by a separate transfer device (not shown). In addition, as Figure 1 shown, the wire jig J and the solar cell C can be alternately positioned on the stage 33. For example, two sets of wire jigs J and solar cells C can be positioned on the stage 33. The battery jig transfer device 10 can support the wire jig J and the solar cell C when the wire jig J and the solar cell C are positioned on the stage 33.

[0061] The wire transfer device 40 receives the wire W from the outside and moves the wire W. For example, the wire transfer device 40 can include a transfer member 41, rollers 43, and an aligner 45.

[0062] The transfer member 41 can have a flat upper surface such that a plurality of wires W can move while being spaced apart from each other. The rollers 43 are connected to the ends of the wire transfer device 40 such that the wire W is transferred when positioned on the upper surface of the transfer member 41. Although not shown in the drawings, the rollers 43 can be connected to one side and the other side of the wire transfer device 40 such that the transfer member 41 is positioned between the rollers 43. The aligner 45 preliminarily aligns the wire W before the solar cell C and the wire W come into contact with each other (i.e., before the solar cell C is positioned on the wire W). For example, the aligner 45 can have a plurality of grooves or protrusions corresponding to the plurality of wires W to allow the wire W to move along a specified path.

[0063] The conveying device 50 moves the solar cell C and the wire jig J together with the wire W. The conveying device 50 can include a first frame 51 and a second frame 53. The first frame 51 and the second frame 53 intersect each other, and the first frame 51 can move between a fixed pair of second frames 53. For example, as Figure 1As shown, when viewed from above, the first frame 51 and the second frame 53 can intersect in directions perpendicular to each other.

[0064] The first frame 51 can be provided with a battery jig transfer device 10. The battery jig transfer device 10 can support (pick up) the solar cell C and the wire jig J, and while being connected to the first frame 51, move in the longitudinal direction of the first frame 51 (e.g., in the first direction), and can position the solar cell C and the wire jig J on the wire W.

[0065] In addition, the transfer device 50 can include a slider 55 that slidably connects the battery jig transfer device 10 to the first frame 51. The slider 55 can move in the longitudinal direction of the first frame 51, and can move the battery jig transfer device 10 between the table 33 and the wire transfer device 40.

[0066] The joining device 60 can join the solar cell C and the wire W that are in contact with each other. For example, the joining device 60 can be a welding device that applies solder to the connection portion of the solar cell C and the wire W, and then heats the solder to join the solar cell C and the wire W. Alternatively, the joining device 60 can be a device that joins the solar cell C and the wire W by applying a conductive adhesive to the connection portion of the solar cell C and the wire W.

[0067] The wire jig transfer device 70 receives the wire jig J from the outside and transfers the wire jig J. For example, the wire jig transfer device 70 including the transfer member 41 can transfer the wire jig J to the table 33 so that the battery jig transfer device 10 can pick up the wire jig J. In addition, a transfer device (not shown) can transfer the wire jig J positioned on the wire jig transfer device 70 to the table 33.

[0068] Reference will be made to Figures 1 to 9 Describe the battery jig transfer device 10 again.

[0069] The battery jig transfer device 10 is connected to the transfer device 50 and transfers the solar cell C and the wire jig J while moving in the first direction (e.g., in the longitudinal direction of the transfer device 50). For example, the battery jig transfer device 10 can support the solar cell C and the wire jig J positioned on the table 33, and then can move above the wire transfer device 40. Then, the battery jig transfer device 10 can position the solar cell C and the wire jig J on the wire W, and can perform the process of fixing the wire W and connecting the wire W to the solar cell C. Here, positioning the solar cell C and the wire jig J on the wire W can mean the action of placing the solar cell C and the wire jig J on the wire W so that the solar cell C and the wire jig J press the wire W from above.

[0070] The battery jig transfer device 10 can support the solar cell C and the wire jig J simultaneously, and position the solar cell C and the wire jig J on the wire W at the same time. In addition, the battery jig transfer device 10 can support a plurality of solar cells C and a plurality of wire jigs J and position the solar cell C and the wire jig J on the wire W.

[0071] The battery jig transfer device 10 can be rotatable. The battery jig transfer device 10 supports the solar cell C and the wire jig J on one side thereof, and then rotates by a predetermined angle (e.g., 180 degrees) to position the solar cell C and the wire jig J on the wire W. Then, the battery jig transfer device 10 supports the solar cell C and the wire jig J on its opposite side, and then rotates again by a predetermined angle to position the solar cell C and the wire jig J on the wire W.

[0072] The battery jig transfer device 10 can include a main body spindle 100, a main body support 200, and a plurality of main bodies (e.g., a first main body 300 and a second main body 400).

[0073] The main body spindle 100 can rotate about an axis and is connected to the first frame 51 through a slider 55. For example, as Figure 1 shown, the main body spindle 100 can rotate clockwise or counterclockwise in a plane about an axis parallel to the Z-axis. The shape of the main body spindle 100 is not particularly limited, and it can have, for example, a cylindrical shape.

[0074] The main body support 200 is connected to one side of the main body spindle 100 and supports each of the first main body 300 and the second main body 400. For example, the main body support 200 is connected to the lower end of the main body spindle 100 and can extend in one direction. The main body support 200 can be made of one or more pipes, tubes, etc., and a plurality of main bodies (e.g., the first main body 300 and the second main body 400) can be connected to each end of the main body support 200.

[0075] Each of the plurality of main bodies can support different sets of solar cells C and wire jigs J. For example, one of the plurality of main bodies (e.g., the first main body 300) can support a first set of solar cells C and wire jigs J, while another main body (e.g., the second main body 400) can support a second set of solar cells C and wire jigs J.

[0076] The battery jig transfer device 10 can position one of a plurality of bodies above the table 33 and can position another body above the wire transfer device 40. In addition, in the battery jig transfer device 10, when one body supports the solar cell C and the wire jig J on the table 33 at the same time, the other body can position the solar cell C and the wire jig J on the wire W located on the wire transfer device 40.

[0077] Each of the plurality of bodies can support a set of solar cells C and wire jigs J at the same time, or can position a set of solar cells C and wire jigs J on the wire W at the same time.

[0078] The first body 300 can support the solar cell C and the wire jig J positioned on the table 33 and can position the solar cell C and the wire jig J on the wire W supported on the wire transfer device 40. The first body 300 can be connected to one end (e.g., Figure 1 the upper end portion) of the body support 200.

[0079] The first body 300 can support one or more solar cells C and wire jigs J. For example, in a state where the first body 300 supports two solar cells C and two wire jigs J, the first body 300 can position the two solar cells C and the two wire jigs J on the wire W simultaneously or sequentially.

[0080] The first body 300 can include a support frame 310, a first picker 300A, and a second picker 300B.

[0081] The support frame 310 connects the first body 300 to the body support 200. For example, as Figure 2 shown, the support frame 310 has a plate shape or a rod shape extending in one direction, and the lower surface of the support frame 310 can be supported by the body support 200. In addition, the first picker 300A and the second picker 300B can be connected to one side and the other side of the support frame 310 respectively. When the main body spindle 100 rotates, the support frame 310 connected to the body support 200 rotates, and the first picker 300A and the second picker 300B connected to the support frame 310 can rotate together.

[0082] The first picker 300A can support the solar cell C and the wire jig J. The first picker 300A is connected to one side (e.g., Figure 2the front side of the lower surface in), and can support the solar cell C and the wire fixture J while moving in different directions. For example, the first picker 300A can move in the height direction (e.g., the height direction of the first main body 300) and the plane direction perpendicular to the height direction (e.g., the width direction or the longitudinal direction of the first main body 300), can support the solar cell C and the wire fixture J positioned on the stage 33, and can position the solar cell C and the wire fixture J on the wire W.

[0083] The first picker 300A may include a connecting portion 320A, a first moving portion 330A, a second moving portion 340A, a supporting portion 350A, and a fixing portion 360A.

[0084] The connecting portion 320A connects the first picker 300A to the support frame 310. For example, the connecting portion 320A extends downward from one side of the lower surface of the support frame 310 and may have a plate shape.

[0085] The first moving portion 330A is slidably connected to the connecting portion 320A and can move the supporting portion 350A. For example, in the first moving portion 330A, the other side may be connected to the second moving portion 340A such that a part of it can rise and fall along one surface of the connecting portion 320A extending in the height direction (e.g., in Figure 2 the up and down direction in). As the first moving portion 330A moves, the second moving portion 340A and the supporting portion 350A connected thereto can move in the height direction.

[0086] The second moving portion 340A may be connected to move integrally with the first moving portion 330A. For example, as Figure 2 shown, the second moving portion 340A is located on the protruding portion of the first moving portion 330A and can rise and fall simultaneously as the first moving portion 330A rises and falls. In addition, the second moving portion 340A can move independently of the first moving portion 330A in different directions. For example, the second moving portion 340A can move in Figure 2 the left direction and the right direction. The supporting portion 350A may be located on one side of the second moving portion 340A.

[0087] The supporting portion 350A may be connected to move integrally with the second moving portion 340A. For example, the supporting portion 350A may be located on the lower surface of the second moving portion 340A. The supporting portion 350A may include a supporting plate 351A, a solar cell supporting portion 352A, and a wire fixture supporting portion 353A.

[0088] The support plate 351A is located on the lower surface of the second moving part 340A, and the solar cell support part 352A and the wire clamp support part 353A are respectively located on one side and the other side of the lower surface of the support plate 351A. When the first main body 300 reaches the designated position, the first moving part 330A and the second moving part 340A move to adjust the position of the support part 350A. When the positioning is completed, the first moving part 330A descends so that the solar cell support part 352A supports the solar cell C positioned on the stage 33. In addition, the second moving part 340A descends and supports the wire clamp J positioned on the stage 33. Then, the second moving part 340A ascends again, and the main body spindle 100 rotates so that the first main body 300 moves to the wire W positioned on the wire transfer device 40, and then positions the solar cell C and the wire clamp J on the wire W.

[0089] The solar cell support part 352A and the wire clamp support part 353A can respectively support the solar cell C and the wire clamp J by suction. For example, each of the solar cell support part 352A and the wire clamp support part 353A can have a plurality of suction holes connected to a negative pressure source (not shown).

[0090] Alternatively, the solar cell support part 352A and the wire clamp support part 353A can be used as electromagnetic chucks to support the solar cell C and the wire clamp J using electromagnets.

[0091] The heights of the surfaces of the solar cell support part 352A and the wire clamp support part 353A that are in contact with the wire clamp J and the solar cell C respectively can be different from each other. For example, as Figure 2 shown, the first contact surface CS1 of the solar cell support part 352A in contact with the solar cell C can be positioned lower than the second contact surface CS2 of the wire clamp support part 353A in contact with the wire clamp J. That is, the first contact surface CS1 and the second contact surface CS2 can be located at different heights.

[0092] The solar cell C and the wire clamp J can be positioned on the same plane while being supported by the solar cell support part 352A and the wire clamp support part 353A. For example, as Figure 2 shown, when the solar cell support part 352A and the wire clamp support part 353A respectively pick up the solar cell C and the wire clamp J, the lower surfaces of the solar cell C and the wire clamp J can be positioned on the same plane LS.

[0093] In an operation of lowering the solar cell support portion 352A and the wire clamp support portion 353A onto the solar cell C and the wire clamp J, the first main body 300 can support the solar cell C and the wire clamp J simultaneously. Further, in an operation of lowering the solar cell support portion 352A and the wire clamp support portion 353A onto the wire W, the first main body 300 can position the solar cell C and the wire clamp J on the wire W.

[0094] Similar to the first picker 300A, the second picker 300B can support the solar cell C and the wire clamp J. The second picker 300B is connected to the other side of the support frame 310 (e.g., Figure 2 the rear side of the lower surface in [description]), and can support the solar cell C and the wire clamp J while moving in multiple directions. That is, the first picker 300A can be positioned in front of the main body support 200, while the second picker 300B can be positioned at the rear. For example, the second picker 300B can move in the height direction and the plane direction perpendicular thereto, can support the solar cell C and the wire clamp J positioned on the stage 33, and can position the solar cell C and the wire clamp J on the wire W.

[0095] The second picker 300B can include a connection portion 320B, a first motion portion 330B, a second motion portion 340B, a support portion 350B, and a fixing portion 360B. Additionally, the support portion 350B can include a support plate 351B, a solar cell support portion 352B, and a wire clamp support portion 353B. These configurations are the same as those of the corresponding parts of the first picker 300A, and their detailed descriptions will be omitted.

[0096] When the first picker 300A supports a set of the solar cell C and the wire clamp J, the new solar cell C divided by the scriber 31 is positioned on the stage 33 by a transfer device (not shown), and the new wire clamp J is transferred from the wire clamp transfer device 70 by a transfer device (not shown) and positioned on the stage 33. Then, the second picker 300B can be lowered to support the new set of the solar cell C and the wire clamp J. Here, the battery clamp transfer device 10 does not move parallel, and the two sets of the wire clamp J and the solar cell C can be positioned on the stage 33 by the transfer device to correspond to the second picker 300B.

[0097] On the stage 33, two sets of the wire clamp J and the solar cell C are positioned, and the first picker 300A and the second picker 300B can be lowered simultaneously to support the two sets of the wire clamp J and the solar cell C.

[0098] The second main body 400 can support the solar cell C and the wire fixture J positioned on the stage 33, and can position the solar cell C and the wire fixture J on the wire W located on the wire transfer device 40. The second main body 400 can be connected to the other end of the main body support 200 (e.g., Figure 1 the lower end portion). The second main body 400 can face the first main body 300 with the main body spindle 100 as the center. Additionally, the second main body 400 can support different groups of solar cells C and wire fixtures J from those in the first main body 300.

[0099] The second main body 400 can support one or more solar cells C and wire fixtures J. For example, in a state where the second main body 400 supports two solar cells C and two wire fixtures J, the second main body 400 can position the two solar cells C and the two wire fixtures J on the wire W simultaneously or sequentially.

[0100] The second main body 400 can include a support frame 410, a first picker 400A, and a second picker 400B. The configuration of the second main body 400 is substantially the same as the configuration of the above-mentioned first main body 300, and the detailed description thereof will be omitted.

[0101] The first main body 300 and the second main body 400 can be spaced apart from the center of the main body spindle 100 by the same distance.

[0102] The first main body 300 and the second main body 400 can alternately support and position the solar cell C and the wire fixture J while rotating around the main body spindle 100. For example, when the first main body 300 is lowered toward the stage 33 to support the solar cell C and the wire fixture J, the second main body 400 can position the supported solar cell C and wire fixture J on the wire W located on the transfer member 41 of the wire transfer device 40.

[0103] In particular, the first main body 300 and the second main body 400 can have a preset interval. For example, the distance between the first main body 300 and the second main body 400 in one direction can correspond to the distance between the stage 33 and the wire transfer device 40 in one direction. Specifically, the distance between the centers of the first main body 300 and the second main body 400 in one direction can be equal to the distance between the center of the transfer member 41 of the wire transfer device 40 and the center of the stage 33. Here, one direction is Figure 1 the distance in the up-down direction in, and the up-down direction can be the extending direction of the first frame 51.

[0104] The operations of supporting the solar cell C and the wire fixture J and positioning the solar cell C and the wire fixture J on the wire W can be simultaneously performed by each of the first main body 300 and the second main body 400. For example, when the first main body 300 that supports two sets of the solar cell C and the wire fixture J positions one set of the solar cell C and the wire fixture J on the wire W, the second main body 400 can simultaneously support the other solar cell C and the wire fixture J.

[0105] In a state where the battery fixture transfer device 10 is positioned by the transfer device 50, one of the first main body 300 and the second main body 400 can be positioned above the table 33 to correspond thereto, and the other can be positioned above the wire transfer device 40 to correspond thereto.

[0106] For example, at the start of the lapping process, the transfer device 50 positions the battery fixture transfer device 10 between the table 33 and the wire transfer device 40. Here, the first main body 300 of the battery fixture transfer device 10 can be positioned to correspond to the solar cell C and the wire fixture J positioned on the table 33. In addition, the second main body 400 can be positioned to correspond to the wire W positioned on the transfer member 41 of the wire transfer device 40. The battery fixture transfer device 10 can support and position the solar cell C and the wire fixture J only by the rotation of the main body spindle 100 and the raising and lowering movements of the first main body 300 and the second main body 400, without any additional movements.

[0107] Next, reference will be made to Figures 1 to 10 describe the operation of the battery fixture transfer device 10 and the lapping method.

[0108] The lapping method includes: the operation of supporting, by any one of the main bodies of the battery fixture transfer device 10 including a plurality of main bodies, a set of the solar cell C and the wire fixture J supported on the table 33; the operation of rotating the battery fixture transfer device 10 to position the supported set of the solar cell C and the wire fixture J on the wire W located on the wire transfer device 40; and the operation of supporting, by another one of the plurality of main bodies of the battery fixture transfer device 10, another set of the solar cell C and the wire fixture J supported on the table 33, and the operations of supporting the solar cell C and the wire fixture J and positioning the solar cell C and the wire fixture J on the wire W can be repeated.

[0109] The operations of transferring the solar cell C and the wire fixture J and positioning the solar cell C and the wire fixture J on the wire W can be simultaneously performed.

[0110] First, as Figure 4 shown, the battery fixture transfer device 10 can be positioned at a preset position. For example, the battery fixture transfer device 10 can be positioned between the table 33 and the wire transfer device 40.

[0111] For example, the first main body 300 of the battery jig transfer device 10 can be positioned corresponding to the solar cell C and the wire jig J located on the table 33. In addition, the second main body 400 can be positioned corresponding to the transfer member 41.

[0112] Next, the first main body 300 supports the solar cell C and the wire jig J. As Figure 5 shown, the first main body 300 can be lowered to support the solar cell C and the wire jig J. Here, the first main body 300 can support two sets of the solar cell C and the wire jig J as described above. That is, the first picker 300A of the first main body 300 can be lowered to support one set of the solar cell C and the wire jig J, and the second picker 300B can be lowered to support one set of the solar cell C and the wire jig J.

[0113] In addition, as Figure 10 (a) shown, the wire W can be introduced. For example, a wire guide (not shown) can pull the wire W and position the wire W on the transfer member 41. The time point when the wire W is positioned on the transfer member 41 can be the same as or different from the time point when the first main body 300 supports the wire jig J and the solar cell C.

[0114] Next, the main body spindle 100 rotates 180 degrees to position the first main body 300 above the wire W and position the second main body 400 above the solar cell C and the wire jig J. As Figure 6 shown, the main body spindle 100 can rotate 180 degrees, and two sets of the solar cell C and the wire jig J supported by the first main body 300 are positioned on the wire W. In addition, the second main body 400 is positioned above the solar cell C and the wire jig J located on the table 33.

[0115] Next, the first main body 300 is lowered to position the solar cell C and the wire jig J on the wire W. As Figure 6 and Figure 10 (b) shown, the first main body 300 can position the supported solar cell C and wire jig J on the wire W.

[0116] Next, when the transfer member 41 and / or the battery jig transfer device 10 moves, the positioned wire jig J, solar cell C, and wire W move, and a new wire W is positioned on the positioned solar cell C through the wire guide. For example, as Figure 7 and Figure 10As shown in (c), the transfer member 41 can be moved or the battery jig transfer device 10 can be moved along the second frame 53 to correspond to the wire jig J and the solar cell C still supported by the first body 300. Then, the wire W is positioned on the solar cell C at the wire guide positioning location.

[0117] Next, as Figure 10 shown in (d), the first body 300 positions the wire jig J on the positioned solar cell C and the wire W, and positions the solar cell C on the wire W.

[0118] When the first body 300 positions the solar cell C and the wire jig J on the wire W, the second body 400 can support another solar cell C and wire jig J. For example, as Figure 7 shown, when the first body 300 positions the second set of solar cells C and wire jigs J on the wire W, the second body 400 can support the solar cell C and the wire jig J. In another embodiment, when the first body 300 positions the first set of solar cells C and wire jigs J on the wire W, the second body 400 can support the solar cell C and the wire jig J.

[0119] When the first body 300 positions two sets of solar cells C and wire jigs J on the wire W and the second body 400 supports two other sets of solar cells C and wire jigs J, the main body spindle 100 rotates 180 degrees again. As Figure 8 shown, the two sets of solar cells C and wire jigs J supported by the second body 400 are positioned on the wire W, and the first body 300 is positioned corresponding to the solar cells C and wire jigs J positioned on the table 33. Additionally, as Figure 10 shown in (e), the transfer member 41 and / or the battery jig transfer device 10 move so that the positioned wire jig J, solar cell C, and wire W move, and a new wire W is positioned on the positioned solar cell C through the wire guide. Then, as Figure 8 and Figure 10 shown in (f), the second body 400 is lowered to position a set of solar cells C and wire jigs J on the wire W.

[0120] Next, as Figure 9 shown, the second body 400 is lowered to position the remaining set of solar cells C and wire jigs J on the wire W.

[0121] By repeating this process, the battery jig transfer device 10 can position the solar cells C and the wire jigs J on the wire W.

[0122] Alternatively, for example, referring to Figure 4, the first main body 300 of the battery jig transfer device 10 can be positioned corresponding to the solar cell C and the wire jig J positioned on the table 33. Additionally, the second main body 400 can be positioned corresponding to the transfer member 41.

[0123] Next, the first main body 300 supports the solar cell C and the wire jig J. For example, the first main body 300 can be lowered to support the solar cell C and the wire jig J. Here, different from the above, the first main body 300 can support two solar cells C and one wire jig J. That is, the first picker 300A of the first main body 300 can be lowered to support one solar cell C, and the second picker 300B can be lowered to support a set of solar cell C and wire jig J.

[0124] Next, the main body spindle 100 can rotate 180 degrees, the first picker 300A can be lowered, and the solar cell C (the first solar cell) supported by the first picker 300A can be positioned on the transfer member 41. Then, the wire W can be introduced onto the solar cell C (the first solar cell) positioned on the transfer member 41. For example, a wire guide (not shown) can pull the wire W to position one end of the wire W on the first solar cell.

[0125] Then, the second picker 300B can move. For example, the second picker 300B can move so that the supported jig J (the second jig) is positioned at a position overlapping the first solar cell in the vertical direction. Then, the second picker 300B can be lowered again, and the second picker 300B can position the supported second jig on the wire W corresponding to the first solar cell, and the solar cell C (the second solar cell) supported by the second picker 300B can be positioned on the other end of the wire W.

[0126] In addition, when the second picker 300B is lowered to position the solar cell C (the second solar cell) and the jig J (the second jig) on the wire W, the second main body 400 can support two other sets of solar cells C and wire jigs J positioned on the table 33.

[0127] Then, when the first main body 300 positions two solar cells C and one wire jig J on the wire W, and the second main body 400 supports two other sets of solar cells C and wire jigs J, the main body spindle 100 rotates 180 degrees again, and the solar cells C and the wire jigs J can be positioned in the order as shown above Figures 4 to 10 shown.

[0128] Therefore, the overlapping device 1 can position one end of the wire W on the upper surface of the first solar cell and can position the other end of the wire W on the lower surface of the second solar cell, so that the two solar cells can be connected in series.

[0129] Next, a method of transferring the solar cell C and the wire jig J to the wire W using the battery jig transfer device 10 will be described. The battery jig transfer method can use the above-described battery jig transfer device 10 and overlapping device 1.

[0130] The battery jig transfer method may include: an operation of the battery jig transfer device 10 moving between the stage 33 and the wire transfer device 40; an operation of the battery jig transfer device 10 using the first main body 300 to support the solar cell C and the wire jig J positioned on the stage 33; an operation of the battery jig transfer device 10 rotating 180 degrees to position the solar cell C and the wire jig J supported by the first main body 300 on the wire W located on the wire transfer device 40; and an operation of the battery jig transfer device 10 using a second main body 400 different from the first main body 300 to support the solar cell C and the wire jig J positioned on the stage 33.

[0131] First, the battery jig transfer device 10 is positioned between the stage 33 and the wire transfer device 40. Once the positioning is completed, the first main body 300 can be positioned corresponding to the solar cell C and the wire jig J positioned on the stage 33. In addition, the second main body 400 can be positioned corresponding to the wire W positioned on the transfer member 41 of the wire transfer device 40. Furthermore, even if the positions of the first main body 300 and the second main body 400 are swapped as the battery jig transfer device 10 rotates, the second main body 400 can be positioned corresponding to the solar cell C and the wire jig J, and the first main body 300 can be positioned corresponding to the wire W.

[0132] Next, the battery jig transfer device 10 uses the first main body 300 to support the solar cell C and the wire jig J positioned on the stage 33. As described above, since the first main body 300 is positioned corresponding to the solar cell C and the wire jig J, the first main body 300 can support the solar cell C and the wire jig J only by a lowering movement.

[0133] Here, the first body 300 can support two different sets of solar cells C and wire clamps J. For example, the first body 300 can simultaneously support a set of solar cells C and wire clamps J using the solar cell support portion 352A and the wire clamp support portion 353A provided in the first picker 300A. Additionally, when the support operation of the first picker 300A is completed, the first body 300 can simultaneously support another set of solar cells C and wire clamps J using the solar cell support portion 352B and the wire clamp support portion 353B provided in the second picker 300B. Alternatively, the first picker 300A and the second picker 300B can be lowered simultaneously to support two sets of solar cells C and wire clamps J at the same time.

[0134] Next, the battery clamp transfer device 10 rotates around the main body spindle 100 to position the solar cells C and wire clamps J supported by the first body 300 above the wire W located on the wire transfer device 40. For example, the battery clamp transfer device 10 can rotate 180 degrees around the main body spindle 100 so that the positions of the first body 300 and the second body 400 are swapped. As described above, since the first body 300 is positioned corresponding to the wire W, the first body 300 can position the solar cells C and wire clamps J on the wire W only through a lowering movement.

[0135] In addition, the battery clamp transfer device 10 uses the second body 400 to support the solar cells C and wire clamps J positioned on the table 33. As described above, since the second body 400 is positioned corresponding to the solar cells C and wire clamps J, the second body 400 can support the solar cells C and wire clamps J only through a lowering movement.

[0136] Here, the second body 400 can support two different sets of solar cells C and wire clamps J. For example, the second body 400 can simultaneously support a set of solar cells C and wire clamps J using the solar cell support 452A and the wire clamp support 453A provided in the first picker 400A. Additionally, when the support operation of the first picker 400A is completed, the second body 400 can simultaneously support another set of solar cells C and wire clamps J using the solar cell support portion 452B and the wire clamp support portion 453B provided in the second picker 400B. Alternatively, the first picker 400A and the second picker 400B can be lowered simultaneously to support two sets of solar cells C and wire clamps J at the same time.

[0137] In addition, when the first body 300 positions the solar cell C and the wire fixture J on the wire W, the second body 400 can support another solar cell C and wire fixture J. For example, when one of the two sets of solar cell C and wire fixture J supported by the first body 300 is first positioned on the wire W, the second body 400 can support a new solar cell C and wire fixture J. Alternatively, when one of the two sets of solar cell C and wire fixture J supported by the first body 300 is positioned on the wire W and the remaining set of solar cell C and wire fixture J is positioned on the wire W, the second body 400 can support a new solar cell C and wire fixture J.

[0138] In this way, when the first body 300 supports the solar cell C and the wire fixture J, the battery fixture transfer device 10 can rotate 180 degrees to position the first body 300 above the wire W, so as to position the solar cell C and the wire fixture J on the wire W. In addition, the battery fixture transfer device 10 can enable the second body 400 to support a new solar cell C and wire fixture J.

[0139] In addition, the battery fixture transfer device 10 can rotate again about the main body spindle 100 to position the second body 400 supporting the solar cell C and the wire fixture J above the wire W, and can position the empty first body 300 above the solar cell C and the wire fixture J.

[0140] In this way, the battery fixture transfer device 10 can alternately repeat the operation of supporting the solar cell C and the wire fixture J and the operation of positioning the solar cell C and the wire fixture J on the wire W by changing the positions of the first body 300 and the second body 400 while rotating.

[0141] The lapping device 1A is described with reference to Figures 11 to 17 is described.

[0142] The latching device 1A may include a battery jig transfer device 10A, a first solar cell transfer device 20A, a second solar cell transfer device 30A, a wire transfer device 40A, a conveying device 50A, a bonding device 60A, and a wire jig transfer device 70A. The latching device 1A may further include a solar cell supply device 80A and an indexing table 90A. For example, the latching device 1A may include an indexing table 90A including a table spindle 91A and a plurality of table supports 92A capable of rotating around the table spindle 91A, a first solar cell transfer device 20A for transferring the solar cell C to the indexing table 90A, and a solar cell supply device 80A for transferring the solar cell C from the first solar cell transfer device 20A to the indexing table 90A. The indexing table 90A includes a solar cell alignment device 93A, a solar cell inspection device 94A, and a solar cell splitting device 95A respectively positioned corresponding to the plurality of table supports 92A, and the indexing table 90A may move the solar cell C transferred from the first solar cell transfer device 20A to the solar cell alignment device 93A, the solar cell inspection device 94A, and the solar cell splitting device 95A while rotating at a predetermined angle.

[0143] The battery jig transfer device 10A may include a main spindle 100A, a main support 200A, and a plurality of main bodies (e.g., a first main body 300A and a second main body 400A). The configuration of the battery jig transfer device 10A is the same as the configuration of the above-described battery jig transfer device 10, and the same components are denoted by adding "A" to the reference numerals in the drawings, and a detailed description thereof will be omitted.

[0144] The first solar cell transfer device 20A is located on one side of the latching device 1 and transfers the solar cell C to the solar cell supply device 80A. For example, as Figure 11 shown, the first solar cell transfer device 20A may be positioned corresponding to one or more of the plurality of holders 83A of the solar cell supply device 80A. The first solar cell transfer device 20A may be a conveyor that receives the solar cell C before the solar cell C is split from an external source (such as a magazine) and transfers the solar cell C to the solar cell supply device 80A.

[0145] The first solar cell transfer device 20A may include a plurality of first solar cell transfer devices 20A. For example, the first solar cell transfer device 20A may include two first solar cell transfer devices 20A corresponding to the solar cell supply device 80A. As Figure 11As shown, two first solar cell transfer devices 20A can be respectively located on one side and the other side of the solar cell supply device 80A. The first solar cell transfer device 20A can transfer the solar cell C to the workbench support member 92A corresponding to the solar cell alignment device 93A among the plurality of workbench support members 92A.

[0146] The second solar cell transfer device 30A receives the solar cell C from the indexing workbench 90A and transfers the solar cell C to the conveying device 50A. For example, as Figure 11 and Figure 14 shown, the second solar cell transfer device 30A is positioned corresponding to the solar cell dividing device 95A of the indexing workbench 90A and can support and transfer the solar cell C divided by the solar cell dividing device 95A.

[0147] The second solar cell transfer device 30A can include a transfer transporter 31A and a stage 33A. The transfer transporter 31A can transfer the divided solar cell C to the stage 33A, and the stage 33A can support the transferred solar cell C and can correct the position of the solar cell C. In this state, the battery jig transfer device 10A of the conveying device 50A can support the solar cell C supported on the stage 33A and the wire jig J supported by the wire jig transfer device 70, and then can move to the wire transfer device 40.

[0148] The wire transfer device 40A can include a transfer member 41A, a roller 43A, and an aligner 45A. The configuration of the wire transfer device 40A is the same as the configuration of the above-mentioned wire transfer device 40. In the drawings, the same components are represented by adding "A" to the reference numerals, and the detailed description thereof will be omitted.

[0149] The conveying device 50A can include a first frame 51A, a second frame 53A, and a slider 55A. The configuration of the conveying device 50A is the same as the configuration of the above-mentioned conveying device 50. In the drawings, the same components are represented by adding "A" to the reference numerals, and the detailed description thereof will be omitted.

[0150] The configuration of the bonding device 60A is the same as the configuration of the above-mentioned bonding device 60. In the drawings, the same components are represented by adding "A" to the reference numerals, and the detailed description thereof will be omitted.

[0151] The configuration of the wire jig transfer device 70A is the same as the configuration of the above-mentioned wire jig transfer device 70. In the drawings, the same components are represented by adding "A" to the reference numerals, and the detailed description thereof will be omitted.

[0152] The solar cell supply device 80A transfers the solar cell C received from the first solar cell transfer device 20A to the indexing table 90A. The solar cell supply device 80A may include a support shaft 81A, a support frame 82A, and a holder 83A. The solar cell supply device 80A may include a support shaft 81A, a plurality of support frames 82A extending from the support shaft 81A in different directions, and a plurality of holders 83A respectively connected to the plurality of support frames 82A to support the solar cell C, and any one of the plurality of holders 83A may overlap with any one of the plurality of table support members 92A of the indexing table 90A.

[0153] The support shaft 81A transfers the solar cell C supported by the holder 83A to the indexing table 90A while rotating, for example, clockwise or counterclockwise about the Z axis. The plurality of support frames 82A are disposed around the support shaft 81A, and the holders 83A may be positioned at each end of the plurality of support frames 82A. For example, four support frames 82A may be positioned around the support shaft 81A in the upper direction, lower direction, left direction, and right direction. In addition, the support shaft 81A may be raised and lowered in the height direction to transfer the solar cell C to the indexing table 90A. The plurality of support frames 82A may include four support frames 82A orthogonal to each other with the support shaft 81A as the center, and may support two solar cells C transferred from the first solar cell transfer device 20A at the same time.

[0154] The holder 83A is located at the end of the support frame 82A and supports the solar cell C transferred from the first solar cell transfer device 20A. For example, as Figure 11 shown, the holder 83A may be positioned on each of the four support frames 82A. In addition, as Figure 11 shown, each of the holders 83A positioned above and below the support shaft 81A among the plurality of holders 83A may be positioned corresponding to the two first solar cell transfer devices 20A. In addition, among the plurality of holders 83A, the holder 83A located on the right side with respect to the support shaft 81A may overlap with the table support member 92A located on the left side among the plurality of table support members 92A of the indexing table 90A. Therefore, as the support shaft 81A rotates, the solar cell C supported by the holder 83A is transferred to the table support member 92A.

[0155] The holder 83A may support the solar cell C by suction. For example, as Figure 12As shown, the holding member 83A is located below the support frame 82A, and can support the upper surface of the solar cell C by suction through a suction hole or the like. In this state, the support shaft 81A is lowered to position the solar cell C on the table support member 92A. Alternatively, the holding member 83A can support the solar cell C by a mechanical clamping unit.

[0156] The indexing table 90A is located on one side of the lapping device 1A, and receives the solar cell C from the first solar cell transfer device 20A and the solar cell supply device 80A. In addition, the indexing table 90A performs processes for inspecting and processing the received solar cell C. For example, as Figure 11 shown, the indexing table 90A can be located between the solar cell supply device 80A and the second solar cell transfer device 30A.

[0157] The indexing table 90A can include a table spindle 91A, a table support member 92A, a solar cell alignment device 93A, a solar cell inspection device 94A, a solar cell dividing device 95A, and a solar cell discharging device 96A. The indexing table 90A can sequentially move the solar cell C to the solar cell inspection device 94A and the solar cell dividing device 95A while rotating around the table spindle 91A. When the solar cell alignment device 93A completes the alignment process, the indexing table 90A rotates to move the aligned solar cell C to the solar cell inspection device 94A, and the first solar cell transfer device 20A can move the solar cell C to the table support member 92A corresponding to the solar cell alignment device 93A. The indexing table 90A supports one or more solar cells C at the same time, and at least two of the solar cell alignment device 93A, the solar cell inspection device 94A, and the solar cell dividing device 95A can operate simultaneously.

[0158] The table spindle 91A is located at the center of the indexing table 90A and can rotate about its axis. For example, as Figure 11 and Figure 12 shown, the table spindle 91A can have a cylindrical shape and can have a rotation axis extending in the height direction. The table spindle 91A can move the solar cell C to the subsequent process while rotating clockwise or counterclockwise about the rotation axis.

[0159] The table support member 92A can be connected to the table spindle 91A and can rotate integrally with the table spindle 91A. For example, as Figure 11As shown, a plurality of workbench support members 92A can be located on the upper end of the workbench spindle 91A. Additionally, the plurality of workbench support members 92A can extend from the workbench spindle 91A in different directions. For example, four workbench support members 92A can extend in the left - right direction and the up - down direction respectively, so as to be arranged perpendicular to each other with respect to the workbench spindle 91A. The plurality of workbench support members 92A can include four workbench support members 92A that are orthogonal to each other with the workbench spindle 91A as the center, and the indexing workbench 90A can rotate in units of 90 degrees.

[0160] The attached drawings show that the workbench support member 92A has a pair of rod - like shapes extending from the workbench spindle 91A, but the present invention is not limited thereto. It is sufficient that the workbench support member 92A has a size and shape capable of supporting the solar cell C, and for example, it can have a flat plate shape.

[0161] The workbench support member 92A can receive the solar cell C from the solar cell supply device 80A and directly support the solar cell C. For example, the solar cell C can be supported on the upper surface of the workbench support member 92A. The workbench support member 92A can include a plurality of suction holes (not shown) or mechanical clamping units to support the solar cell C.

[0162] The workbench support member 92A can form a stage on which each process for the solar cell C is performed. For example, the workbench support member 92A can be positioned to correspond to the solar cell alignment device 93A, the solar cell inspection device 94A, the solar cell cutting device 95A, and the solar cell discharging device 96A respectively, and can form each stage as an area for performing each process, that is, the process of aligning the solar cell C, the process of inspecting the solar cell C, the process of cutting the solar cell C, and the process of discharging the solar cell C. Here, the stage can refer to an area based on each of the workbench support members 92A where the corresponding process is performed. Additionally, the stage can be a fixed area that does not move along the workbench support member 92A and corresponds to each of the solar cell alignment device 93A, the solar cell inspection device 94A, the solar cell cutting device 95A, and the solar cell discharging device 96A.

[0163] The solar cell alignment device 93A can be positioned to correspond to one of the plurality of workbench support members 92A, and can align the position of the solar cell C delivered from the solar cell supply device 80A. For example, when the solar cell C is delivered from the solar cell supply device 80A and positioned on the workbench support member 92A, the solar cell alignment device 93A can check whether the solar cell C is in the desired position and then correct its position.

[0164] As Figure 11As shown, the solar cell alignment device 93A can be located below the workbench support 92A, and can move the position of the solar cell C located on the workbench support 92A in the X-axis, Y-axis, and Z-axis directions, and adjust the angle around the Z-axis.

[0165] The solar cell alignment device 93A can be a robotic arm. The solar cell alignment device 93A can use a vacuum gripper or a finger gripper to correct the position of the solar cell C located on the workbench support 92A.

[0166] The solar cell alignment device 93A can include a vision camera and / or a sensor to check the position of the solar cell C located on the workbench support 92A.

[0167] The solar cell alignment device 93A can overlap at least a part of the solar cell supply device 80A. For example, as Figure 11 and Figure 12 shown, the solar cell supply device 80A can be located above the indexing table 90A, and the holder 83A adjacent to the indexing table 90A can overlap at least a part of the corresponding solar cell alignment device 93A and the workbench support 92A. In this way, when observing the solar cell alignment device 93A and the solar cell supply device 80A in a plan view, by overlapping each other, the overall size of the indexing table 90A, the solar cell supply device 80A, and the overlapping device 1A including the indexing table 90A and the solar cell supply device 80A can be reduced. In addition, the solar cell C can be transferred only by the raising and lowering movement of the solar cell alignment device 93A, without the need for the solar cell alignment device 93A and the solar cell supply device 80A to move closer to or away from each other to transfer the solar cell C.

[0168] In Figure 11 it, the solar cell alignment device 93A is shown as being located below the workbench support 92A, but the present invention is not limited thereto. The solar cell alignment device 93A can be located above the workbench support 92A, and its position is not particularly limited as long as it can correct the position of the solar cell C located on the workbench support 92A.

[0169] The solar cell inspection device 94A uses a vision camera or the like to inspect the appearance, foreign matter, feature recognition, etc. of the solar cell C. The solar cell inspection device 94A forms a 90-degree angle with the solar cell alignment device 93A centered on the workbench spindle 91A, and the solar cell inspection device 94A can be located, for example, at the lower right corner of the solar cell alignment device 93A.

[0170] The solar cell inspection device 94A can be positioned corresponding to another worktable support member 92A, which forms a 90-degree angle with the worktable support member 92A corresponding to the solar cell alignment device 93A. Therefore, when the indexing table 90A that receives the solar cell C from the solar cell supply device 80A rotates 90 degrees, the corresponding solar cell C is positioned corresponding to the solar cell inspection device 94A.

[0171] The solar cell inspection device 94A is located above or below the worktable support member 92A and uses a vision camera or the like to inspect the state of the solar cell C. When the solar cell inspection device 94A determines that the solar cell C is a good product, the indexing table 90A rotates to transfer the solar cell C to the subsequent process, that is, the solar cell dividing device 95A. When the solar cell inspection device 94A determines that the solar cell C is a defective product, the indexing table 90A transfers the solar cell C to the solar cell discharge device 96A.

[0172] The solar cell dividing device 95A divides the solar cell C that has been determined to be a good product into a predetermined size. For example, the solar cell dividing device 95A is a laser scribing device, which can divide the solar cell C into two or three or more by irradiating the solar cell C with a laser. The solar cell dividing device 95A can form a 90-degree angle with the solar cell inspection device 94A. For example, the solar cell dividing device 95A can face the solar cell alignment device 93A centered on the worktable spindle 91A and can also be located on the upper right side of the solar cell inspection device 94A.

[0173] The solar cell dividing device 95A can be located in the extending direction of the solar cell alignment device 93A and the wire W. For example, as Figure 11 shown, the direction in which the solar cell alignment device 93A and the solar cell dividing device 95A face each other can correspond to the extending direction of the wire W located on the wire transfer device 40A. The solar cell alignment device 93A and the solar cell dividing device 95A can be located on opposite sides centered on the worktable spindle 91A.

[0174] The solar cell dividing device 95A can be positioned corresponding to another worktable support member 92A, which forms a 90-degree angle with the worktable support member 92A corresponding to the solar cell inspection device 94A. Therefore, when the solar cell inspection device 94A determines that the solar cell C is a good product, the indexing table 90A rotates 90 degrees, and the corresponding solar cell C is positioned corresponding to the solar cell dividing device 95A. In addition, the solar cell dividing device 95A divides the solar cell C that has been determined to be a good product.

[0175] On the other hand, when the solar cell inspection device 94A determines that the solar cell C is a defective product, even when the solar cell C is positioned corresponding to the solar cell dividing device 95A, the solar cell dividing device 95A does not divide the solar cell C. Further, when the indexing table 90A rotates by 90 degrees, the corresponding solar cell C moves to the solar cell discharging device 96A.

[0176] In addition to the laser scriber, the solar cell dividing device 95A may further include a breaking member for breaking the solar cell C by irradiating a laser along the groove. For example, the solar cell dividing device 95A may divide the solar cell C by emitting a laser to the solar cell C, supporting the solar cell C using a vacuum gripper or the like, and then bending the solar cell C centering on the groove. The divided solar cell C may be moved to a subsequent process by a second solar cell transfer device 30A located near the solar cell dividing device 95A.

[0177] When the transferred solar cell C is positioned on the table support 92A, the solar cell alignment device 93A checks and corrects the position of the solar cell C, and the solar cell inspection device 94A checks whether the solar cell C after position correction is defective, and the solar cell dividing device 95A may divide the solar cell C determined by the solar cell inspection device 94A to be a good product into workpieces of a predetermined size.

[0178] The indexing table 90A may further include a solar cell discharging device 96A, which is located on the opposite side of the solar cell inspection device 94A centering on the table spindle 91A, and discharges the solar cell C determined to be a defective product to the outside of the lapping device 1A. When the solar cell inspection device 94A determines that the solar cell C is a good product, the solar cell dividing device 95A divides the solar cell C, and when the solar cell inspection device 94A determines that the solar cell C is a defective product, the solar cell dividing device 95A does not divide the solar cell C, and the solar cell discharging device 96A may discharge the solar cell C.

[0179] The solar cell discharging device 96A discharges the solar cell C determined to be a defective product to the outside of the lapping device 1A. For example, when the solar cell inspection device 94A determines that the solar cell C is a defective product, the indexing table 90A rotates so that the corresponding solar cell C can reach the solar cell discharging device 96A. Then, the solar cell discharging device 96A may discharge the solar cell C to the outside of the lapping device 1A.

[0180] The solar cell discharging device 96A can form a 90-degree angle with the solar cell dividing device 95A. For example, the solar cell discharging device 96A can be positioned to face the solar cell inspection device 94A with the workbench spindle 91A as the center, and is also located at the upper left corner of the solar cell dividing device 95A.

[0181] The solar cell discharging device 96A can be positioned corresponding to another workbench support member 92A, and the other workbench support member 92A forms a 90-degree angle with the workbench support member 92A corresponding to the solar cell dividing device 95A. Therefore, the solar cell C determined to be defective and not divided in the solar cell dividing device 95A is moved to the solar cell discharging device 96A.

[0182] The solar cell discharging device 96A can be perpendicular to the solar cell inspection device 94A and the wire W. For example, as Figure 11 shown, the direction in which the solar cell discharging device 96A and the solar cell inspection device 94A face each other can extend perpendicular to the direction in which the wire W extends on the wire transfer device 70A.

[0183] The direction in which the solar cell alignment device 93A and the solar cell dividing device 95A face each other can be perpendicular to the direction in which the solar cell inspection device 94A and the solar cell discharging device 96A face each other.

[0184] The indexing workbench 90A can perform each process while rotating at a 90-degree angle. For example, as Figure 11 shown, the indexing workbench 90A can be provided with four workbench support members 92A extending in directions orthogonal to each other with the workbench spindle 91A as the center. In addition, each of the workbench support members 92A can be positioned corresponding to the solar cell alignment device 93A, the solar cell inspection device 94A, the solar cell dividing device 95A, and the solar cell discharging device 96A. Additionally, the indexing workbench 90A can move the solar cell C one by one while rotating at a 90-degree angle.

[0185] The indexing table 90A can perform each process on multiple solar cells C simultaneously. For example, when the first solar cell C is transferred from the solar cell supply device 80A to the table support 92A of the indexing table 90A, the solar cell alignment device 93A corrects the position of the solar cell C. Then, the indexing table 90A rotates 90 degrees to move the corresponding solar cell C to the solar cell inspection device 94A. Simultaneously or with a slight time difference, the second solar cell C is transferred from the solar cell supply device 80A to the table support 92A corresponding to the solar cell alignment device 93A. Again, the indexing table 90A rotates 90 degrees to move the first solar cell C to the solar cell splitting device 95A and to move the transferred second solar cell C to the solar cell inspection device 94A. Here, when the first solar cell C is determined to be a good product, the split solar cell C is transferred by the second solar cell transfer device 30A. Simultaneously or with a slight time difference, the third solar cell C is delivered from the solar cell supply device 80A to the table support 92A corresponding to the solar cell alignment device 93A. Again, the indexing table 90A rotates 90 degrees, and when the first solar cell C is determined to be a good product, the empty table support 92A is positioned at the solar cell discharge device 96A, the second solar cell C is moved to the solar cell splitting device 95A, and the third solar cell C is moved to the solar cell inspection device 94A. When the first solar cell C is determined to be a defective product, the corresponding solar cell C is delivered to the solar cell discharge device 96A and discharged outside the lamination device 1A. Simultaneously or with a slight time difference, the fourth solar cell C is transferred from the solar cell supply device 80A to the table support 92A corresponding to the solar cell alignment device 93A. Again, the indexing table 90A rotates 90 degrees so that the table support 92A supporting the first solar cell C is positioned to correspond to the solar cell alignment device 93A.

[0186] When one solar cell C is supplied to the indexing table 90A, the indexing table 90A may not receive another solar cell C until the process on the corresponding solar cell C is completed. Here, "completing the process" means that the solar cell C determined to be a good product is split and transferred to the second solar cell transfer device 30A, or the solar cell C determined to be a defective product is discharged outside the lamination device 1A through the solar cell discharge device 96A.

[0187] Next, reference will be made to Figures 13 to 17 to describe the lamination method and the operation of the indexing table 90A.

[0188] Before the operation of supporting a set of solar cells C and wire clamps J, the above overlapping method may further include the following operations: the operation of the solar cell supply device 80A transferring the solar cells C from the first solar cell transfer device 20A to the indexing table 90A; the operation of the solar cell alignment device 93A aligning the solar cells C; the operation of the solar cell inspection device 94A inspecting the aligned solar cells C to determine whether the solar cells C are good products or defective products; the operation of the solar cell splitting device 95A splitting the solar cells C determined to be good products; and the operation of sequentially moving the solar cells C to the solar cell alignment device 93A, the solar cell inspection device 94A, and the solar cell splitting device 95A positioned corresponding to the plurality of table support members 92A of the indexing table 90A while the indexing table 90A rotates at a predetermined angle between the operations of aligning the solar cells C, inspecting the solar cells C, and splitting the solar cells C.

[0189] At least two of the operations of aligning the solar cells C, inspecting the solar cells C, and splitting the solar cells C can be performed simultaneously.

[0190] It may further include the operation of the solar cell discharge device 96A of the indexing table 90A discharging the solar cells C to the outside when the solar cells C are determined to be defective products during the operation of inspecting the solar cells C.

[0191] As Figure 13 shown, the solar cells C are transferred from the first solar cell transfer device 20A to the solar cell supply device 80A. The first solar cell transfer device 20A is respectively located above and below the solar cell supply device 80A. The solar cell supply device 80A can be positioned such that the holders 83A correspond to the solar cells C at the ends of each of those positioned in the first solar cell transfer device 20A and support the solar cells C in this state. For example, as Figure 13 shown, the holders 83A respectively located above and below the solar cell supply device 80A can support the solar cells C. Here, based on Figure 13 , the solar cells C supported by the holders 83A located below the solar cell supply device 80A are referred to as the first solar cells C1.

[0192] Next, as Figure 14 shown, the solar cell supply device 80A rotates counterclockwise by 90 degrees about the support shaft 81A. Accordingly, the first solar cells C1 supported by the holders 83A located below the solar cell supply device 80A move to the right side of the solar cell supply device 80A. Additionally, as Figure 12 and Figure 14As shown, the holding member 83A can be positioned corresponding to the table support member 92A on the left side of the indexing table 90A. Then, the holding member 83A can be lowered to position the first solar cell C1 on the table support member 92A.

[0193] In addition, the position of the first solar cell C1 can be corrected by the solar cell alignment device 93A of the indexing table 90A. For example, the solar cell alignment device 93A checks the position of the first solar cell C1 positioned on the table support member 92A by means of a vision camera or the like, and when the current position of the first solar cell C1 deviates from the preset position, it moves and rotates to correct the position of the first solar cell C1.

[0194] Then, the empty holding member 83A of the solar cell supply device 80A supports the solar cell C located on the first solar cell transfer device 20A. Here, based on Figure 14 , the solar cell C supported by the holding member 83A located below the solar cell supply device 80A is referred to as the second solar cell C2.

[0195] Next, as Figure 15 shown, when the alignment of the position of the first solar cell C1 is completed, the indexing table 90A rotates counterclockwise by 90 degrees. As a result, the first solar cell C1 moves to the position corresponding to the solar cell inspection device 94A. The solar cell inspection device 94A uses a vision camera or the like to inspect the appearance, shape, dimensions, product number, etc. of the first solar cell C1, and checks for defective conditions. In addition, the solar cell alignment device 93A performs the alignment process on the second solar cell C2 in the same manner.

[0196] In addition, the solar cell supply device 80A rotates counterclockwise by 90 degrees again, and the empty holding member 83A supports the solar cell C located on the first solar cell transfer device 20A. Here, based on Figure 15 , the solar cell C supported by the holding member 83A located below the solar cell supply device 80A is referred to as the third solar cell C3.

[0197] Next, as Figure 16As shown, the indexing table 90A rotates counterclockwise by 90 degrees again to move the first solar cell C1 to the position corresponding to the solar cell dividing device 95A. Here, when the solar cell inspection device 94A determines that the first solar cell C1 is a good product, the solar cell dividing device 95A divides the first solar cell C1 into workpieces of a predetermined size and quantity. The divided first solar cell C1 can be transferred to the second solar cell transfer device 30A. On the other hand, when the solar cell inspection device 94A determines that the first solar cell C1 is a defective product, the solar cell dividing device 95A does not perform the dividing process on the first solar cell C1, and the first solar cell C1 remains in the state where it is supported by the table support 92A.

[0198] In addition, the solar cell inspection device 94A performs an inspection process on the second solar cell C2, and the solar cell alignment device 93A performs an alignment process on the third solar cell C3.

[0199] In addition, the solar cell supply device 80A rotates counterclockwise by 90 degrees again, and the empty holder 83A supports the solar cell C located on the first solar cell transfer device 20A. Here, based on Figure 16 , the solar cell C supported by the holder 83A below the solar cell supply device 80A is referred to as the fourth solar cell C4.

[0200] Next, as Figure 17 shown, the indexing table 90A rotates counterclockwise by 90 degrees again to move the first solar cell C1 to the position corresponding to the solar cell discharging device 96A. Here, when the solar cell inspection device 94A determines that the first solar cell C1 is a good product, since the first solar cell C1 is divided by the solar cell dividing device 95A and transferred through the second solar cell transfer device 30A, the table support 92A becomes empty. On the other hand, when the solar cell inspection device 94A determines that the first solar cell C1 is a defective product, the solar cell discharging device 96A receives the first solar cell C1 and discharges the first solar cell C1 to the outside of the lapping device 1.

[0201] In addition, when the second solar cell C2 is determined to be a good product, the solar cell dividing device 95A performs a dividing process, the solar cell inspection device 94A performs an inspection process on the third solar cell C3, and the solar cell alignment device 93A performs an alignment process on the fourth solar cell C4.

[0202] In addition, the solar cell supply device 80A rotates counterclockwise by 90 degrees again, and the empty holder 83A supports the solar cell C positioned in the first solar cell transfer device 20A.

[0203] Reference Figure 18 Describe the lapping device 1B.

[0204] Figure 18 A part of the lapping device 1B is shown, which includes another type of first solar cell transfer device 20B and does not include the solar cell supply device 80A. Other configurations of the lapping device 1B may be the same as those of the above-described lapping device 1A, and detailed descriptions thereof will be omitted.

[0205] As Figure 18 shown, the first solar cell transfer device 20B can directly transfer the solar cell C to the indexing table 90B without passing through the solar cell supply device 80A. The first solar cell transfer device 20B can be positioned such that its end corresponds to the support member 92B and the solar cell alignment device 93B on the left side of the indexing table 90B. When the solar cell C is transferred from the first solar cell transfer device 20B to the support member 92B, the solar cell alignment device 93B can correct its position. Once the position correction is completed, the indexing table 90B can rotate 90 degrees to transfer the corresponding solar cell C to the solar cell inspection device 94B. Then, the subsequent solar cell C transferred from the first solar cell transfer device 20B can be transferred to the solar cell alignment device 93B.

[0206] Reference Figure 19 Describe the lapping device 1C.

[0207] Figure 19 A part of the lapping device 1C is shown, which includes another type of indexing table 90C and does not include the solar cell supply device 80A. Other configurations of the lapping device 1C may be the same as those of the above-described lapping device 1C, and detailed descriptions thereof will be omitted.

[0208] As Figure 19 shown, the first solar cell transfer device 20C is a conveying device that moves the solar cell C in one direction and can be spaced apart from the indexing table 90C. That is, the end of the first solar cell transfer device 20C may not overlap with the support member 92C and the solar cell alignment device 93C on the left side of the indexing table 90C.

[0209] In addition, the indexing table 90C may further include a transfer robot 97C. The transfer robot 97C is located on a support member 92C corresponding to the solar cell alignment device 93C. The transfer robot 97C can transfer the solar cell C from the first solar cell transfer device 20C to the indexing table 90C while moving between the solar cell alignment device 93C and the first solar cell transfer device 20C. For example, the transfer robot 97C can support the solar cell C by suction through a suction hole, or can support the solar cell C with a mechanical clamping unit to position the solar cell C on the support member 92C.

[0210] Although the present invention has been described with reference to the embodiments shown in the drawings, these are merely examples. Any person skilled in the art will easily understand that various modifications and other equivalent embodiments can be obtained from these embodiments. Therefore, the actual technical protection scope of the present invention should be determined based on the appended claims.

[0211] Industrial Applicability

[0212] The present invention can be used in industries related to lapping devices and lapping methods.

Claims

1. A lapping device, comprising: a stage configured to support a solar cell and a wire fixture; a wire fixture transfer device configured to transfer the wire fixture to the stage; a wire transfer device adjacent to the wire fixture transfer device and configured to transfer a wire; and a cell fixture transfer device configured to position the solar cell and the wire fixture on the wire supported by the wire transfer device, wherein the cell fixture transfer device includes a main body spindle and a plurality of main bodies that rotate through the main body spindle, support the solar cell and the wire fixture on the stage, and position the solar cell and the wire fixture on the wire on the wire transfer device, and the plurality of main bodies alternately perform an operation of supporting the solar cell and the wire fixture while rotating around the main body spindle and an operation of positioning the solar cell and the wire fixture on the wire.

2. The lapping device according to claim 1, wherein each of the plurality of main bodies supports a different set of solar cells and wire fixtures.

3. The lapping device according to claim 1, wherein the cell fixture transfer device positions any one of the plurality of main bodies above the stage and positions the other main bodies above the wire transfer device, and when the one main body supports the solar cell and the wire fixture on the stage, the other main bodies simultaneously position the solar cell and the wire fixture on the wire on the wire transfer device.

4. The lapping device according to claim 1, wherein the plurality of main bodies include a first main body and a second main body facing each other with the main body spindle as the center, the first main body and the second main body support different sets of solar cells and wire fixtures, and when the first main body positions a set of solar cells and wire fixtures on the wire, the second main body simultaneously supports another set of solar cells and wire fixtures positioned on the stage.

5. The lapping device according to claim 1, wherein each of the plurality of main bodies simultaneously supports a set of solar cells and wire fixtures or simultaneously positions a set of solar cells and wire fixtures on the wire.

6. The lapping device according to claim 1, comprising: an indexing table including a table spindle and a plurality of table supports configured to rotate around the table spindle; a first solar cell transfer device configured to transfer the solar cell to the indexing table; and a solar cell supply device configured to transfer the solar cell from the first solar cell transfer device to the indexing table, wherein the indexing table includes a solar cell alignment device, a solar cell inspection device, and a solar cell splitting device respectively positioned corresponding to the plurality of table supports, The indexing table moves the solar cells transferred from the first solar cell transfer device to the solar cell alignment device, the solar cell inspection device, and the solar cell cutting device while rotating at a predetermined angle.

7. The overlapping device according to claim 6, wherein, the first solar cell transfer device transfers the solar cells to a worktable support corresponding to the solar cell alignment device among the plurality of worktable supports, and the indexing table sequentially moves the solar cells to the solar cell inspection device and the solar cell cutting device while rotating around the worktable spindle.

8. The overlapping device according to claim 6, wherein, when the solar cell alignment device completes the alignment process, the indexing table rotates to move the aligned solar cells to the solar cell inspection device, and the first solar cell transfer device moves the solar cells to the support corresponding to the solar cell alignment device.

9. The overlapping device according to claim 6, wherein, the indexing table supports one or more solar cells at the same time, and at least two of the solar cell alignment device, the solar cell inspection device, and the solar cell cutting device operate simultaneously.

10. The overlapping device according to claim 6, wherein, the plurality of worktable supports include four worktable supports orthogonal to each other with the worktable spindle as the center, and the indexing table rotates in units of 90 degrees.

11. The overlapping device according to claim 6, wherein, when the transferred solar cells are positioned on the worktable support, the solar cell alignment device checks and corrects the positions of the solar cells, the solar cell inspection device checks whether the solar cells with corrected positions are defective, and the solar cell cutting device cuts the solar cells determined to be good products by the solar cell inspection device into a predetermined size.

12. The overlapping device according to claim 11, wherein, the indexing table further includes a solar cell discharging device, which is located on the opposite side of the solar cell inspection device with the worktable spindle as the center, and is configured to discharge the solar cells determined to be defective products to the outside of the overlapping device, when the solar cell inspection device determines that the solar cells are good products, the solar cell cutting device cuts the solar cells, and when the solar cell inspection device determines that the solar cells are defective products, the solar cell cutting device does not cut the solar cells, and the solar cell discharging device discharges the solar cells.

13. The overlapping device according to claim 6, wherein, the solar cell alignment device and the solar cell cutting device are located on opposite sides with the worktable spindle as the center.

14. The overlapping device according to claim 6, wherein, The solar cell supply device includes: A support shaft; A plurality of support frames configured to extend from the support shaft in different directions; and A plurality of holders respectively connected to the plurality of support frames to support the solar cells, and Any one of the plurality of holders overlaps with any one of the plurality of table support members of the indexing table.

15. The lapping device according to claim 14, wherein, The first solar cell transfer device includes two first solar cell transfer devices respectively corresponding to the solar cell supply device, and The plurality of support frames include four support frames orthogonal to each other with the support shaft as the center, and simultaneously support two solar cells transferred from the first solar cell transfer device.

16. A lapping method, including: Supporting a set of solar cells and a wire jig supported on a table with any one of the main bodies of a battery jig transfer device including a plurality of main bodies; Positioning the supported set of solar cells and wire jig on a wire located on a wire transfer device by rotating the battery jig transfer device; and Supporting another set of solar cells and wire jig supported on the table with another one of the plurality of main bodies of the battery jig transfer device, wherein, supporting the solar cells and the wire jig and positioning the solar cells and the wire jig on the wire are repeated.

17. The lapping method according to claim 16, wherein, Transferring the solar cells and the wire jig and positioning the solar cells and the wire jig on the wire are performed simultaneously.

18. The lapping method according to claim 16, further including: Before supporting the set of solar cells and wire jig, Delivering solar cells from a first solar cell transfer device to an indexing table through a solar cell supply device; Aligning the solar cells through a solar cell alignment device; Inspecting the aligned solar cells through a solar cell inspection device to determine whether the solar cells are good products or defective products; Dividing the solar cells determined to be good products through a solar cell dividing device; and Between aligning the solar cells, inspecting the solar cells, and dividing the solar cells, while the indexing table rotates at a predetermined angle, sequentially moving the solar cells to the solar cell alignment device, the solar cell inspection device, and the solar cell dividing device positioned corresponding to a plurality of table support members on the indexing table.

19. The lapping method according to claim 18, wherein, At least two of aligning the solar cells, inspecting the solar cells, and dividing the solar cells are performed simultaneously.

20. The lapping method according to claim 18, wherein, It further includes discharging the solar cells to the outside through a solar cell discharging device of the indexing table when the solar cells are determined to be defective products during inspecting the solar cells.

Images