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WO2025028847A1 - Dispositif de séparation fils-cellule et procédé de séparation fils-cellule - Google Patents

Dispositif de séparation fils-cellule et procédé de séparation fils-cellule Download PDF

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Publication number
WO2025028847A1
WO2025028847A1 PCT/KR2024/009974 KR2024009974W WO2025028847A1 WO 2025028847 A1 WO2025028847 A1 WO 2025028847A1 KR 2024009974 W KR2024009974 W KR 2024009974W WO 2025028847 A1 WO2025028847 A1 WO 2025028847A1
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WO
WIPO (PCT)
Prior art keywords
cell
hot gas
wire
separation device
separation unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/KR2024/009974
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English (en)
Korean (ko)
Inventor
이현승
김건우
송광영
라주현
김상호
김태윤
고명우
이원호
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hanwha Solutions Corp
Original Assignee
Hanwha Solutions Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hanwha Solutions Corp filed Critical Hanwha Solutions Corp
Publication of WO2025028847A1 publication Critical patent/WO2025028847A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F71/00—Manufacture or treatment of devices covered by this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0016—Brazing of electronic components

Definitions

  • the present invention relates to a cell-wire separation device and method, and more particularly, to a cell-wire separation device and method capable of detaching and separating a wire coupled to a cell from the cell.
  • a solar panel is a flat-plate device that has integrated elements for converting light energy into electrical energy. These solar panels are usually manufactured in a modular form and installed in a designated location to produce electrical energy using sunlight shining on the ground.
  • solar panels are manufactured by joining together at least one cell assembly.
  • the cell assembly is composed of a plurality of unit cells (hereinafter referred to as cells) arranged in a predetermined manner and a plurality of wires for electrically connecting neighboring cells.
  • the cells are provided as flat-plate-shaped members, and the wires are joined to one side of the cells.
  • a soldering process is mainly used to connect the cells and wires of the cell assembly to each other.
  • a soldering part surrounding a part of the wire can be formed on one side of the cell. If necessary, a plurality of soldering parts can be provided along the wire on one side of the cell.
  • the defective cell is replaced with another good cell.
  • the repair process of the above cell assembly can be largely divided into four steps. First, the wire that electrically connects a defective cell to a neighboring cell is detached from the defective cell. Then, the wire that is detached and separated from the defective cell is cut, thereby separating the defective cell from the cell assembly. Next, the defective cell is removed, and another good cell is supplied in the place where the defective cell was. Finally, the replaced cell and another neighboring cell are electrically connected to each other using the wire. At this time, a re-soldering process is generally performed to form a new soldering part surrounding the wire on one side of the cell in order to join the wire to the cell.
  • the present invention has been made in consideration of the above points, and an object of the present invention is to provide a cell-wire separation device and method capable of automatically detaching a wire coupled to a cell of a cell assembly from the cell.
  • Another object of the present invention is to provide a cell-wire separation device and method capable of quickly separating a plurality of wires bonded to one side of a cell.
  • Another object of the present invention is to provide a cell-wire separation device and method capable of accurately separating wires bonded to one side of a cell.
  • a cell-wire separation device comprising: a separation unit capable of emitting hot gas for melting a soldering portion provided on one side of a cell to join wires; a moving unit capable of moving the separation unit onto the one side of the cell; and a controller for controlling the separation unit and the moving unit.
  • a cell-wire separation device and method is configured to separate wires from cells by controlling a separation unit capable of discharging hot gas for removing a soldering portion and a moving unit capable of moving the separation unit by a controller, so that wires can be automatically separated from cells without separate human labor.
  • a cell-wire separation device and method comprises a separation unit having a plurality of outlets through which hot gas is discharged, and the plurality of outlets are configured to separate a plurality of wires respectively arranged on one side of a cell, so that a plurality of wires can be quickly separated from the cell.
  • a cell-wire separation device and method are provided in which a discharge groove of a separation unit is formed along an extension direction of a wire and an exhaust port is positioned inside the discharge groove, so that hot gas discharged from the discharge port can be concentratedly sprayed onto a soldering portion surrounding the wire, thereby enabling accurate separation of the wire from the cell.
  • a cell-wire separation device and method have a cross-section in which the discharge groove of the separation unit increases toward the outside, so that hot gas discharged from the discharge port can be concentratedly sprayed onto the soldering portion surrounding the wire, thereby enabling accurate separation of the wire from the cell.
  • a cell-wire separation device has a plurality of hot gas generators spaced apart from each other along a direction in which a plurality of wires coupled to one side of a cell are arranged, so that a large amount of hot gas can be evenly discharged onto one side of the cell, thereby accurately separating the wires from the cell.
  • FIG. 1 and FIG. 2 are perspective views of a cell-wire separation device according to one embodiment of the present invention, viewed from different angles, installed next to a workbench on which a cell assembly is placed.
  • FIG. 3 is a schematic configuration diagram of a cell-wire separation device according to one embodiment of the present invention.
  • FIG. 4 is a perspective view from above of a portion of a cell assembly that can be a working target of a cell-wire separation device according to one embodiment of the present invention.
  • FIGS. 5 and 6 are perspective views of a separation unit of a cell-wire separation device according to one embodiment of the present invention viewed from different angles.
  • Figures 7 to 9 are vertical cross-sectional views of the separation unit illustrated in Figure 5 cut along different planes.
  • Figure 10 is a flow chart of a cell-wire separation method according to one embodiment of the present invention.
  • FIG. 11 and FIG. 12 are drawings for explaining step S400 of FIG. 10.
  • Figure 13 is a drawing for explaining step S500 of Figure 10.
  • Figure 14 is a drawing for explaining step S600 of Figure 10.
  • a cell-wire separation device comprising: a separation unit capable of emitting hot gas for melting a soldering portion provided on one side of a cell to join wires; a moving unit capable of moving the separation unit onto the one side of the cell; and a controller for controlling the separation unit and the moving unit.
  • the separation unit may include a support frame that can be moved by the moving unit; a hot gas generator that is supported by the support frame and configured to heat gas introduced from the outside to generate hot gas; and a hot gas discharger that guides the hot gas generated in the hot gas generator to be discharged to the soldering part provided on the one surface of the cell.
  • the hot gas discharger may be provided with a main path inside through which hot gas generated from the hot gas generator flows in, and a plurality of discharge ports open toward the outside may be provided on the outside so that hot gas flowing through the main path is discharged to the soldering part provided on the one surface of the cell.
  • the separation unit may include a temperature sensor provided on one side of the hot gas discharger to measure the temperature of the hot gas flowing through the main euro.
  • the separation unit may include a heater provided in the hot gas discharger so as to heat the hot gas flowing through the main euro.
  • the heater can be extended parallel to the main euro from the side of the main euro.
  • the plurality of outlets may be arranged in a direction parallel to the direction in which the plurality of wires are spaced apart.
  • the plurality of outlets may be spaced apart from each other so as to correspond to each one of the plurality of wires.
  • the outer surface of the hot gas discharger is provided with a slit-shaped discharge groove extending in a direction parallel to the extension direction of the wire, and at least one of the plurality of discharge ports may be located on the inner side of the discharge groove.
  • the discharge groove is provided in multiple numbers corresponding to the multiple discharge ports, and the multiple discharge ports can each be located on the inside of one of the multiple discharge grooves.
  • the cross-sectional area of the discharge groove may increase as it goes toward the outside of the hot gas discharger.
  • the hot gas generators may be provided in multiple numbers and arranged spaced apart from each other in a direction perpendicular to the direction in which the multiple cells are arranged.
  • the hot gas discharger may include a discharge body part that extends in a direction parallel to the direction in which the plurality of hot gas generators are spaced apart and has the main path provided therein; and a discharge part that protrudes outwardly from the discharge body part and has at least one of the plurality of discharge ports provided at an end.
  • the part where hot gas flows into the main path from the hot gas generator and the outlet can be positioned misaligned with respect to the direction in which hot gas is discharged from the outlet.
  • the moving unit can be configured to move the separation unit in a direction parallel to one side of the cell and a direction perpendicular to the one side of the cell.
  • a detection unit for detecting a defective cell among a plurality of cells arranged in parallel is further included, and the controller can control the movement unit to designate the cell as the defective cell and move the separation unit onto one side of the defective cell.
  • a cell-wire separation method for repairing a cell assembly comprising: a step of placing a cell assembly including a plurality of cells arranged in parallel with each other, wires electrically connecting the plurality of cells, and a soldering member provided on one surface of the cells for joining the wires and the cells on a workbench; a step of arranging a separation unit capable of discharging a hot gas for melting the soldering member on one surface of the cells; a step of controlling the separation unit so that the hot gas is discharged toward the soldering member provided on the one surface of the cells; and a step of detaching at least a portion of the wire from the cell.
  • the method may further include a step of controlling a detection unit to detect a defective cell among the plurality of cells; and a step of designating the cell as the defective cell.
  • the separation unit in the step of arranging the separation unit on the one side of the cell, can be arranged so that the plurality of discharge ports provided on the outer surface of the separation unit and through which hot gas is discharged and the plurality of wires provided face each other.
  • a plurality of soldering portions are provided on the one side of the cell and arranged along the extension direction of the wire, and in the step of arranging the separation unit on the one side of the cell, the separation unit can be arranged adjacent to a soldering portion located at one end in the arrangement direction among the plurality of soldering portions.
  • FIGS. 1 and 2 are perspective views illustrating a cell-wire separation device according to an embodiment of the present invention from different angles, wherein the device is installed next to a worktable on which a cell assembly is placed.
  • FIG. 3 is a schematic configuration diagram of a cell-wire separation device according to an embodiment of the present invention.
  • FIG. 4 is a perspective view illustrating an upper side of a portion of a cell assembly that can be a work target of the cell-wire separation device according to an embodiment of the present invention.
  • FIGS. 5 and 6 are perspective views illustrating a separation unit of a cell-wire separation device according to an embodiment of the present invention from different angles.
  • FIGS. 7 to 9 are vertical cross-sectional views of the separation unit illustrated in FIG. 5 taken along different planes.
  • a cell-wire separation device (hereinafter referred to as a separation device) according to one embodiment of the present invention is a device for separating wires from cells of a cell assembly.
  • a separation device is a device for separating wires from cells of a cell assembly.
  • a cell (as shown in FIG. 4) means a flat-shaped member that performs a predetermined electrical function.
  • the cell may be a PV cell that produces electrical energy using solar light energy incident on one side, but is not limited thereto.
  • a wire (as shown in FIG. 4) means a conductive member that is thin and long and extends in one direction.
  • the wire may be a single metal wire having a predetermined conductivity, but is not limited thereto.
  • the wire can electrically connect two neighboring cells to each other.
  • one side and the other side of the wire can be electrically coupled to two neighboring cells, respectively.
  • the wire can be electrically coupled to the cell by a soldering portion (S) (as shown in FIG. 4) provided on one side of the cell.
  • the soldering portion is a mass formed by solidifying molten metal and can surround at least a portion of the wire.
  • the soldering portion can be made of lead (Pb) or silver (Ag), but is not limited thereto.
  • a cell assembly (3) (illustrated in FIG. 1) means an assembly composed of a plurality of cells arranged in a predetermined manner and a plurality of wires electrically connecting the plurality of cells to each other.
  • the manner in which the plurality of cells are arranged and connected in the cell assembly is not particularly limited.
  • the plurality of cells may be arranged in parallel along the X-axis direction and connected in series, but is not limited thereto, and the plurality of cells may be arranged in a grid shape or connected in parallel.
  • one side of a wire may be electrically coupled to a lower surface of a cell, and the other side of the wire may be electrically coupled to an upper surface of a neighboring cell.
  • one side of another wire may be electrically coupled to an upper surface of the cell, and the other side of the other wire may be electrically coupled to a lower surface of another neighboring cell. Accordingly, the cell, a cell neighboring the cell, and another cell neighboring the cell may be connected in series with each other.
  • a separation device (1) is a device for detaching a wire (W) coupled to a cell (P) of a cell assembly (3) from the cell (P).
  • W wire
  • P cell
  • separation the detachment and separation will be simply referred to as separation.
  • the cell assembly (3) can be placed on a desk-shaped worktable (2) to become a work target of the separation device (1).
  • the purpose of the present separation device (1) separating the wire (W) from the cell (P) may be to repair the cell assembly (3).
  • a plurality of cells (P) forming the cell assembly (3) may include cells having a predetermined defect (hereinafter, referred to as defective cells).
  • a defective cell means a cell that cannot properly perform its original function due to a manufacturing defect, physical or chemical impact, etc. In this case, it is desirable to replace the defective cell with another good cell through a repair process of the cell assembly (3).
  • the physical connection and electrical connection between other cells and the defective cell must first be cut off.
  • This process can be performed through a process of cutting a wire (W), and the present separation device (1) can separate and space the cell (P) from the wire (W) as a preprocessing process to enable the cutting process to be performed smoothly, as shown in Fig. 14.
  • the cutting unit can easily approach the wire (W) to perform the cutting process, and damage to the cell (P) due to the cutting unit coming into contact with the cell (P) can also be prevented.
  • the separation device (1) may be configured as a device for separating the wire (W) from the cell (P) for various purposes or uses other than the purpose of repairing the cell assembly (3) described above.
  • a separation device (1) may include a detection unit (10).
  • the detection unit (10) may be configured to detect a defective cell among a plurality of cells (P) forming a cell assembly (3).
  • the detection unit (10) may include a light source (11) that emits a predetermined light, a camera (12) that can detect the light emitted from the light source (11), and a movement module (13) that can move the light source (11) and the camera (12) in a predetermined direction.
  • the light source (11) may be configured to move along the X-axis direction from the lower side of the cell assembly (3) by the moving module (13) and irradiate a predetermined light to the lower surface of the cell (P).
  • the camera (12) may be configured to move along the X-axis direction from one side of the cell assembly (3) by the moving module (13) and detect light passing through the cell (P) or light reflected from the cell (P).
  • the characteristics of the light detected by the camera (12) can be used to determine whether the cell (P) through which the light passes or is reflected is defective.
  • the detection unit (10) can detect a defective cell.
  • various known technologies for detecting whether the cell (P) is defective can be applied, and the configuration of the detection unit (10) is not particularly limited.
  • a separation device (1) may include a controller (20).
  • the controller (20) is configured to control the detection unit (10) described above and the moving unit (30) and separation unit (50) described below.
  • Such a controller (20) may be implemented using an electrical circuit that is processed by hardware, or may be implemented by a processor, a central processing unit (CPU), a controller, an arithmetic logic unit, a computational logic circuit, a digital signal processing device, a microcomputer, an FPGA, a system on a chip (SoC), a programmable logic unit, a microprocessor, or any device capable of performing the functions described below.
  • the controller (20) may be configured to determine which cell (P) among the plurality of cells (P) is a defective cell based on the information acquired by the detection unit (10). As an example, the controller (20) may determine a cell (P) in which the physical characteristics of reflected light or transmitted light are outside the allowable range as a defective cell.
  • the controller (20) may be configured to control the moving unit (30) to allow the separation unit (50) described below to be placed on one side of the defective cell, and may be configured to control the separation unit (50) to separate the wire (W) coupled to the defective cell from the defective cell.
  • the separation device (1) according to one embodiment of the present invention can automatically perform the process of separating the wire (W) from the cell (P). This can minimize human labor required for the repair process of the cell assembly (3) and reduce the manufacturing cost of the cell assembly (3).
  • a separation device (1) may include a moving unit (30) and a separation unit (50).
  • the moving unit (30) is configured to move the separation unit (50) to a predetermined position
  • the separation unit (50) is configured to separate a wire (W) from a cell (P).
  • the moving unit (30) can be configured to move the separation unit (50) in the X-axis direction in which a plurality of cells (P) are arranged and in the Z-axis direction which is a direction perpendicular to the cells (P).
  • the moving unit (30) can separate all wires (W) coupled to the defective cell even if the separation unit (50) moves only in the two directions described above without having to move the separation unit (50) in the three spatial coordinate axes (XYZ axes). Since this is an effect that is also related to the configuration of the separation unit (50) according to the present embodiment, this will be described in detail later together with the separation unit (50).
  • the moving unit (30) of the separation device (1) may include a first base frame (31), a first motor (32), a first cable bearer (33), and a first guide frame (34) to move the separation unit (50) in the X-axis direction.
  • the first base frame (31) may be arranged in a predetermined space where the separation device (1) is installed and configured to support the first motor (32) to the first guide frame (34) and the separation unit (50) described later. Then, a first motor (32) may be provided on the side of the first base frame (31). The first motor (32) may generate a driving force for moving the separation unit (50) in the X-axis direction.
  • the first motor (32) may be an electric motor, for example.
  • a first guide frame (34) may be placed on the upper side of the first base frame (31).
  • the first guide frame (34) may extend along the X-axis direction.
  • a first cable bearer (33) may be installed on the side of the first guide frame (34).
  • the first cable bear (33) can have one part bent or stretched in the X-axis direction by the power generated from the first motor (32). Accordingly, the second base frame (35) coupled to one side of the first cable bear (33) and the separation unit (50) supported by it can move in the X-axis direction.
  • the moving unit (30) of the separation device (1) may include a second base frame (35), a second motor (36), a second cable bearer (37), and a second guide frame (38) to move the separation unit (50) in the Z-axis direction.
  • the second base frame (35) may be configured to be coupled to one side of the first cable bearer (33) as described above and thereby moved in the X-axis direction. Then, the second base frame (35) may be configured to support the second motor (36) to the second guide frame (38) and the separation unit (50) described below. At this time, the second base frame (35) may be slidably coupled to the first guide frame (34) so as to be smoothly guided in the X-axis direction.
  • a second motor (36) may be coupled to one side of the second base frame (35).
  • the second motor (36) may generate a driving force to move the separation unit (50) along the Z-axis.
  • the second motor (36) may be an electric motor.
  • a second guide frame (38) extending in the Z-axis direction can be coupled to the second base frame (35), and a second cable bearer (37) can be installed on the side of the second guide frame (38).
  • the second cable bear (37) can have one part thereof stretched or bent in the Z-axis direction by the driving force of the second motor (32), and by this operation, the separation unit (50) supported on one side of the second cable bear (37) can be moved in the Z-axis direction.
  • the moving unit (30) of the separation device (1) can move the separation unit (50) in two different directions (X-axis direction and Z-axis direction).
  • the configuration of the moving unit (30) is not limited to the configuration by the cable bearer and motor described above, and the configuration of the moving unit (30) is not particularly limited as long as it can move the separation unit (50).
  • the separation device (1) may further include a connecting frame (40).
  • the connecting frame (40) may connect the separation unit (50) to the moving unit (30) so that the separation unit (50) may be moved by the moving unit (30).
  • the connecting frame (40) may be provided as a plurality of frames that are provided separately. Accordingly, the relative position between the moving unit (30) and the separation unit (50) may be adjusted, and further, a stable support structure of the separation unit (50) may be implemented. Furthermore, the connecting frame (40) may be slidably coupled to the second guide frame (38). Accordingly, the Z-axis movement of the separation unit (50) may be stably guided.
  • the connecting frame (40) is provided separately, but in some cases, the connecting frame (40) may not be provided separately.
  • the connecting frame (40) may not need to be provided separately.
  • a separation device (1) may include a separation unit (50).
  • the separation unit (50) is a unit for separating a wire (W) from a cell (P).
  • the separation unit (50) may be configured to generate and discharge a hot gas having a predetermined temperature.
  • the separation unit (50) may include a support frame (60) and a hot gas generator (80).
  • the support frame (60) may be fixedly connected to one side of the aforementioned connecting frame (40) and configured to be movable by a moving unit (30).
  • the support frame (60) can support a hot gas generator (80) described later.
  • a hot gas generator (80) described later.
  • one side of the hot gas generator (80) can be fixedly connected to the support frame (60).
  • the support frame (60) may be provided as a block-shaped member having a hole into which one side of the hot gas generator (80) may be inserted and fixed.
  • the support frame (60) in the present embodiment may extend in the Y-axis direction. This is because the hot gas generators (80) described later may be provided in multiple units and spaced apart from each other along the Y-axis direction.
  • the shape of the support frame (60) is not particularly limited as long as it can support the hot gas generators (80) described later.
  • a hot gas generator (80) of a separation device may include a suction unit (81), a heating unit (82), and a discharge unit (83).
  • the suction unit (81) is configured to suck in a predetermined gas from the outside.
  • an external gas inlet (81a) may be provided on the outer surface of the inlet (81).
  • a predetermined pipe (not shown) is connected to the inlet (81a) so that the external gas can be injected at high pressure.
  • the external gas may be air, but is not limited thereto, and the external gas may be composed of another type of gas or mixture having a predetermined function.
  • a predetermined path connected to the suction port (81a) may be provided inside the suction portion (81). External gas entering through the suction port (81a) may flow through this path.
  • a heating member (82) may be coupled to the upper side of the suction member (81).
  • the heating member (82) may be configured to heat external gas sucked into the suction member (81).
  • the heating member (82) may include a heating wire (or coil) extending into the internal passage of the suction member (81), and may heat the external gas with heat generated from the heating wire.
  • a hot gas having a predetermined temperature can be generated.
  • the temperature of the hot gas can be, for example, 450 to 500 degrees Celsius.
  • the temperature of the hot gas can be appropriately adjusted depending on the characteristics of the soldering part (S) that connects the wire (W) to the cell (P).
  • a discharge portion (83) extending in the negative direction of the Z-axis toward one side of the cell (P) may be provided on the lower side of the suction portion (81).
  • the discharge portion (83) may be provided in the form of a pipe and may be connected to a flow path generated inside the suction portion (81). Accordingly, hot gas generated in the internal flow path of the suction portion (81) may flow toward the cell (P) along the discharge portion (83).
  • a plurality of hot gas generators (80) may be provided. Accordingly, a sufficient amount of hot gas can be generated to separate all wires (W) provided on one side of the cell (P).
  • a plurality of hot gas generators (80) may be spaced apart in the Y-axis direction, which is the direction in which a plurality of wires (W) are arranged on one side of the cell (P). Accordingly, hot gases generated from the plurality of hot gas generators (80) may be evenly generated and discharged along the Y-axis. As a result, a plurality of wires (W) spaced apart in the Y-axis direction may be quickly and accurately separated from the cell (P).
  • the components of the hot gas generator (80) are not limited to the aforementioned intake (81) and exhaust (83), and the hot gas generator (80) may be formed of various known devices capable of receiving external gas and heating it to generate hot gas.
  • a separation unit (50) may include a housing (70).
  • the housing (70) may be provided as a structure in the shape of a vessel that accommodates at least a portion of a hot gas generator (80).
  • the housing (70) is provided in a hexahedral box shape, and the discharge portion (83) of the hot gas generator (80) can be arranged to penetrate the housing (70) in the Z-axis direction.
  • the housing (70) can protect the discharge portion (83) of the hot gas generator (80) from external contamination or impact. Furthermore, the housing (70) can prevent the heat energy of the hot gas from being released from the discharge portion (83) to the outside by partitioning the space surrounding the discharge portion (83) from the outside. To this end, the housing (70) can be made of a material having low thermal conductivity.
  • a housing support frame (71) may be provided on the side of the housing (70).
  • the housing support frame (71) may extend in the Z-axis direction, and one end may be coupled to the aforementioned support frame (60), and the other end may be coupled to the side of the housing (70).
  • the housing support frame (71) is provided in two pieces and can be provided on each of the two sides of the housing (70) in the Y-axis direction. Accordingly, the structural stability of the separation unit (50) can be further increased.
  • the separation unit (50) of the separation device (1) may include a hot gas discharger (90) coupled to an end of a discharge portion (83) of a hot gas generator (80).
  • the hot gas discharger (90) is configured to guide hot gas generated in the hot gas generator (80) to be discharged toward the cell (P).
  • the hot gas discharger (90) may include a discharge body part (91).
  • the discharge body part (91) may be provided as a block-shaped member extending in the Y-axis direction, which is the direction in which a plurality of wires (W) are arranged.
  • a coupling hole (91a) may be provided on the upper surface of the discharge body (91) into which the end of the discharge part (83) of the aforementioned hot gas generator (80) can be inserted and coupled. At this time, a plurality of coupling holes (91a) may be provided corresponding to a plurality of hot gas generators (80).
  • a plurality of coupling holes (91a) can be spaced apart along the Y-axis direction, which is the arrangement direction of a plurality of hot gas generators (80). These coupling holes (91a) can be connected to a main flow path (L1) provided inside the discharge body part (91). Accordingly, hot gas generated in the hot gas generator (80) can be introduced into the main flow path (L1) of the discharge body part (91).
  • the joint structure of the discharge body part (91) and the hot gas generator (80) is configured as a hole-insertion structure, but as long as the hot gas generated in the hot gas generator (80) can flow into the main flow path (L1) of the discharge body part (91), their joint structure is not particularly limited.
  • the main path (L1) of the separation device may be a space where hot gases generated from a plurality of hot gas generators (80) are mixed. This is because even if the hot gas generators (80) are precisely controlled, the temperatures of the hot gases generated from each hot gas generator (80) may be different from each other. Accordingly, in order to discharge hot gases of a uniform temperature to the outside, it is necessary to mix them.
  • the main flow path (L1) may be extended along the Y-axis direction in which a plurality of hot gas generators (80) are spaced apart. Accordingly, hot gases flowing into the main flow path (L1) from the hot gas generators (80) may flow in the Y-axis direction and be mixed with each other. In other words, hot gases flowing into the main flow path (L1) may be forced to flow in a direction other than the Z-axis direction in which they are discharged from the discharge port (92b) described below, and may be mixed.
  • the upper part of the separation body part (91) can be fixedly connected to the lower surface of the housing (70) described above. This configuration can reduce the load applied to the hot gas generator (80) by allowing the hot gas discharger (90) to be supported by the housing (70).
  • the hot gas discharger (90) of the separation device may include a discharge portion (92).
  • the discharge portion (92) may protrude from the discharge body portion (91) toward the cell (P) such that an end thereof may be adjacent to one side of the cell (P).
  • the discharge portion (92) protrudes in the negative direction of the Z-axis.
  • the discharge portion (92) can extend along the Y-axis direction, which is the direction in which a plurality of wires (W) are spaced apart from each other on one side of the cell (P). As a result, one part of the end of the discharge portion (92) can face each of the plurality of wires (W).
  • a slit-shaped discharge groove (92a) formed in the X-axis direction, which is the extension direction of the wire (W), may be formed in the discharge section (92) of the separation device according to one embodiment of the present invention.
  • a plurality of discharge grooves (92a) may be provided, and may be spaced apart along the Y-axis direction, which is the direction in which a plurality of wires (W) coupled to one surface of the cell (P) are arranged.
  • the distance between the discharge grooves (92a) may correspond to the distance between the wires (W). Accordingly, when the separation unit (50) is placed on one side of the cell (P), the discharge grooves (92a) of the separation unit (50) may face the wires (W) coupled to one side of the cell (P), respectively.
  • An exhaust port (92b) described later is provided on the inside of the exhaust groove (92a) to discharge hot gas.
  • the hot gas discharged from the exhaust port (92b) can be distributed in the extension direction of the wire (W).
  • the soldering portion (S) surrounding the wire (W) can be exposed to the hot gas entirely along the extension direction of the wire (W), so that the phase transition (from solid to molten metal) of the soldering portion (S) can be smoothly achieved entirely.
  • the discharge groove (92a) can be configured so that the cross-sectional area increases in the negative direction of the Z-axis, which is the cell (P) side. Accordingly, the hot gas discharged from the discharge port (92b) can be concentratedly sprayed to the soldering part (S) surrounding the wire (W).
  • the shape of the cross-section along the YZ plane of the discharge groove (92a) is a triangle, but is not limited thereto, and is not particularly limited as long as the cross-section area increases toward the cell (P).
  • the shape of the cross-section described above may be formed as a trumpet shape or an arch shape, etc., with the bottom side facing the negative direction of the Z-axis.
  • an end of a discharge unit (92) may be provided with an exhaust port (92b) through which hot gas flowing through the main flow path (L1) may be discharged to the outside.
  • a sub-flow path (L2) that fluidically connects the exhaust port (92b) and the main flow path (L1) may be provided inside the hot gas discharger (90).
  • a plurality of outlets (92b) may be provided corresponding to a plurality of wires (W) coupled on one side of the cell (P), and a plurality of sub-channels (L2) may be provided corresponding to a plurality of outlets (92b).
  • a plurality of sub-channels (L2) may be spaced apart from a plurality of outlets (92b) along the Y-axis direction.
  • a plurality of discharge ports (92b) may be respectively positioned inside a plurality of discharge grooves (92a). Accordingly, hot gas discharged through the discharge ports (92b) may be controlled and sprayed by the shape of the discharge grooves (92a).
  • a plurality of discharge ports (92b) can be arranged to face a plurality of wires (W) coupled on one side of the cell (P), the plurality of wires (W) can be separated from one side of the cell (P) by hot gas discharged through each of the discharge ports (92b).
  • outlets (92b) may not be the same as the number of outlet grooves (92a). For example, if there are more outlets (92b) than outlet grooves (92a), several outlets (92b) may be arranged inside one outlet groove (92a), or some outlets (92b) may be arranged outside the outlet grooves (92a).
  • the above-described configuration of the separation unit (50) according to the present embodiment can contribute to simplifying the structure of the moving unit (30). This is because the separation unit (50) according to the present embodiment can simultaneously separate a plurality of wires (W) provided on one side of the cell (P), so the separation unit (50) does not need to move in the Y-axis direction, which is the direction in which the plurality of wires (W) are arranged.
  • the sub-channel (L1) of the separation device may be positioned so as to be misaligned with the portion where the hot gas enters the main channel (L2) from the hot gas generator (80) when viewed in the Z-axis direction, which is the discharge direction of the hot gas.
  • the portion where the hot gas enters the main channel (L2) may be the aforementioned joining hole (91a).
  • the relative positional relationship between the coupling hole (91a) and the discharge port (92b) can make the temperature of the hot gas discharged from the hot gas discharger (90) more uniform by generating a vortex (eddy current) in the hot gas in the main path (L1).
  • the joining hole (91a) and the discharge port (92b) are arranged in parallel (or coaxially arranged) in the Z-axis direction, some of the hot gas introduced through the joining hole (91a) may be discharged directly to the discharge port (92b) without flowing in the extension direction of the main flow path (L1) (i.e., the Y-axis direction). This may result in hot gas having different temperatures being discharged from each discharge port (92b) of the hot gas discharger (90).
  • the separation unit (50) of the separation device may include a temperature sensor (93).
  • the temperature sensor (93) may be configured such that one side protrudes into the main path (L1) to measure the temperature of the hot gas.
  • the temperature of the hot gas measured by the temperature sensor (93) may be transmitted to the controller (20) described above, and may be utilized by the controller to control the operation of the hot gas generator (80) or the heater (94) described below.
  • the structure of the temperature sensor (93) is not particularly limited as long as it can measure the temperature of the hot gas discharged from the hot gas discharger (90).
  • the separation unit (50) of the separation device may include a heater (94).
  • the heater (94) may be placed on the side of the main path (L1) inside the discharge body part (91). And, the heater (94) may heat the hot gas of the main path (L1) by generating thermal energy using electric energy provided from an external power source.
  • the separation unit (50) of the separation device according to the present embodiment can precisely control the temperature of the hot gas by heating the hot gas with the heater (94) by assisting the hot gas generator (80).
  • the heater (94) may extend in the Y-axis direction along the main path (L1). Furthermore, two heaters (94) may be provided and placed on each side of the main path (L1).
  • the heater (94) can heat the hot gas of the main duct (L1) as a whole.
  • the heater (94) can be composed of one or more, and the specific structure of the heater (94) will not be particularly limited as long as it can heat the hot gas of the main duct (L1).
  • the separation device is configured such that the moving unit and the separation unit separate the wire coupled to one side of the cell from the cell under the control of the controller, so that the wire can be automatically separated from the cell.
  • the human labor required for the repair process of the cell assembly can be minimized, and the manufacturing cost of the solar cell can be drastically reduced.
  • the separation method according to one embodiment of the present invention is a separation method capable of automatically separating a wire from a cell.
  • This separation method can be implemented by a separation device according to one embodiment of the present invention described above.
  • a cell assembly (3) is placed on a work table (2) (S100), and it is detected whether there is a defective cell among a plurality of cells (P) included in the cell assembly (3) (S200). Then, the controller (20) designates the defective cell detected in step S200 as a target cell.
  • the controller (20) can detect a defective cell by controlling the detection unit (10).
  • the process of detecting a defective cell by the detection unit (10) under the control of the controller (20) can be configured in the same manner as described above, and therefore, a detailed description thereof is omitted.
  • a controller (20) designates a detected defective cell as a target cell (P) (S300), and the controller (20) controls a moving unit (30) to place a separation unit (50) on one side of the target cell (P) (S400).
  • a plurality of wires (W) may be bonded to one side of the target cell (P).
  • a plurality of soldering portions (S) may be provided on one side of the target cell (P) to bond the plurality of wires to the cells (P), respectively.
  • the soldering portion (S) may surround at least a portion of the wire (W) along the extension direction of the wire (W).
  • the soldering portion (S) may be a dome-shaped metal mass surrounding a portion of the wire (W).
  • a plurality of discharge ports (92b) and a plurality of soldering parts (S) provided on one surface of the target cell (P) may be arranged to face each other.
  • the discharge ports (92b) and the soldering parts (S) may face each other in the Z-axis direction, which is the discharge direction of the hot gas.
  • hot gas can be discharged simultaneously toward these multiple soldering parts (S), so that multiple wires (W) can be quickly separated from the cell (P).
  • a controller (20) controls a moving unit (30) to place a separation unit (50) on one side of a target cell (P) (S400), and the controller (20) controls the separation unit (50) to discharge hot gas to a soldering part (S) of the target cell (P) (S500).
  • the separation method according to the present embodiment can accurately separate the wire (W) from the target cell (P).
  • the controller (20) controls the separation unit (50) to discharge hot gas to the soldering portion (S) (S500), and when the soldering portion (S) is phase-transformed into molten metal (S-l), the bonding force between the wire (W) and the cell (P) is removed, and the wire (W) is separated and spaced from the target cell (P) (S600).
  • a subsequent process for example, a cutting process of the wire (W) can be smoothly performed.
  • the moving unit and the separation unit can automatically separate the wire from the cell under the control of the controller, the labor required for the repair process of the cell assembly can be minimized, and the manufacturing cost of the cell assembly can be reduced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fuel Cell (AREA)

Abstract

L'invention concerne un dispositif de séparation fils-cellule. Le dispositif de séparation fils-cellule selon un aspect de la présente invention peut comprendre : une unité de séparation qui peut décharger un gaz chaud pour faire fondre une partie de brasage, qui est disposée sur une surface de la cellule, afin de joindre des fils ; une unité de déplacement qui peut déplacer l'unité de séparation vers la surface de la cellule ; et un dispositif de commande pour commander l'unité de séparation et l'unité de déplacement.
PCT/KR2024/009974 2023-08-02 2024-07-11 Dispositif de séparation fils-cellule et procédé de séparation fils-cellule Pending WO2025028847A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020230101089A KR102811101B1 (ko) 2023-08-02 2023-08-02 셀-와이어 분리 장치 및 방법
KR10-2023-0101089 2023-08-02

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WO2025028847A1 true WO2025028847A1 (fr) 2025-02-06

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PCT/KR2024/009974 Pending WO2025028847A1 (fr) 2023-08-02 2024-07-11 Dispositif de séparation fils-cellule et procédé de séparation fils-cellule

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KR (1) KR102811101B1 (fr)
WO (1) WO2025028847A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4537312B2 (ja) * 2001-02-23 2010-09-01 株式会社タムラ製作所 熱風噴射型加熱装置および加熱炉
KR101568131B1 (ko) * 2015-05-08 2015-11-12 주식회사 에스에너지 태양전지 모듈 및 그 수리방법
KR20160095713A (ko) * 2015-02-03 2016-08-12 주식회사 제우스 태양전지 제조장치
CN114864741A (zh) * 2022-04-18 2022-08-05 无锡奥特维科技股份有限公司 电池串返修装置及返修方法
KR20230083527A (ko) * 2021-12-03 2023-06-12 부강이엔에스 주식회사 태양전지모듈 수리방법

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102726503B1 (ko) * 2023-03-30 2024-11-06 주식회사 에드파 가열 유닛 및 이를 포함하는 태양전지 리페어 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4537312B2 (ja) * 2001-02-23 2010-09-01 株式会社タムラ製作所 熱風噴射型加熱装置および加熱炉
KR20160095713A (ko) * 2015-02-03 2016-08-12 주식회사 제우스 태양전지 제조장치
KR101568131B1 (ko) * 2015-05-08 2015-11-12 주식회사 에스에너지 태양전지 모듈 및 그 수리방법
KR20230083527A (ko) * 2021-12-03 2023-06-12 부강이엔에스 주식회사 태양전지모듈 수리방법
CN114864741A (zh) * 2022-04-18 2022-08-05 无锡奥特维科技股份有限公司 电池串返修装置及返修方法

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