CN-122029966-A - Device for producing solar cells and method for producing solar cells

Abstract

An apparatus for manufacturing a solar cell according to one embodiment of the present invention includes a solar cell having a wire disposed therein, a stage on which the solar cell is mounted, and a guide bar disposed on a moving path of the stage at a lower side of the stage, wherein the stage includes a main body, a plate disposed to move upward and downward in the main body and to be in contact with the guide bar disposed at the lower side, and a plurality of pins mounted on the plate at an upper side of the plate, wherein when the stage moves, the stage moves upward on the guide bar, the guide bar pushes upward the plate on which the plurality of pins are mounted, and an upper surface of the plurality of pins moves upward to bring the wire of the solar cell into contact with a surface of the solar cell.

Inventors

• Zheng Minjiao
• BAI DONGXIAN
• Quan Shengkui
• Ding Dongzhen

Assignees

• 韩华思路信株式会社

Dates

Publication Date

20260512

Application Date

20241112

Priority Date

20231011

Claims (13)

1. 1. A solar cell manufacturing apparatus comprising: the solar cell is provided with a wire; A carrier on which the solar cell is mounted, and A guide bar disposed below the stage to be placed on a travel path of the stage; Wherein, the carrier includes: a main body; a plate disposed to move upward or downward within the body and abut the guide bar disposed below the stage, and A plurality of pins disposed on an upper surface of the plate, an Wherein, when the carrier moves, the carrier moves to be mounted on the guide bar, the guide bar pushes the board upward, wherein the plurality of pins are disposed on the board, and upper surfaces of the plurality of pins contact the lead wire with a lower surface of the solar cell while moving upward.
2. 2. The solar cell manufacturing apparatus according to claim 1, wherein The guide bar is formed with a bevel portion at a distal end thereof, and The stage is mounted on the guide bar along the ramp portion.
3. 3. The solar cell manufacturing apparatus according to claim 1, further comprising: a jig configured to press an upper surface of the solar cell, the jig being in contact with the upper surface of the solar cell.
4. 4. The solar cell manufacturing apparatus according to claim 1, wherein The solar cell includes: A surface portion; a plurality of wires disposed on the surface portion of the solar cell, and A plurality of conductive adhesive members disposed between the plurality of wires and the surface portion and spaced apart from one another.
5. 5. The solar cell manufacturing apparatus according to claim 4, wherein The plurality of pins are disposed at positions corresponding to the plurality of conductive adhesive members.
6. 6. The solar cell manufacturing apparatus according to claim 1, wherein The main body includes: a wire insertion hole into which the wire provided on the solar cell is inserted, and And a pin insertion hole into which the plurality of pins are inserted.
7. 7. The solar cell manufacturing apparatus according to claim 6, wherein The wire insertion hole has a depth (h) in a range of about 5 to about 10 times a width of the wire.
8. 8. The solar cell manufacturing apparatus according to claim 1, wherein Each of the plurality of pins has a diameter (D) in a range of about 3 to about 5 times a width of the wire.
9. 9. The solar cell manufacturing apparatus according to claim 1, wherein A thickness (t 3) between the upper surfaces of the plurality of pins moving upward and the upper surface of the stage is smaller than a thickness (t 2) of the wire.
10. 10. A method of manufacturing a solar cell, comprising: A supply stage; Feeding a wire onto the carrier; feeding a solar cell and a jig onto the carrier to which the lead is fed; Preheating the solar cell and the clamp on the carrier; Curing the solar cell and the jig on the carrier, and The solar cell is removed and the solar cell is then removed, Wherein the step of preheating the solar cell and the jig on the carrier includes lifting a plurality of pins to press the wires.
11. 11. The solar cell manufacturing method according to claim 10, wherein The carrier comprises: a main body; A plate disposed to move upward or downward within the body and abutting a guide disposed below the stage, and A plurality of pins disposed on an upper surface of the plate.
12. 12. The method for manufacturing a solar cell according to claim 11, The step of preheating the solar cell and the clamp on the carrier comprises the following steps: moving the carrier to the upper side of the guide rod, and Moving the plate upward, and Wherein the step of lifting the plurality of pins to press the wire comprises: the plurality of pins provided on the plate are moved upward to press the wires provided between the plurality of pins and the solar cell toward the lower surface of the solar cell.
13. 13. The solar cell manufacturing method according to claim 12, further comprising: post-heating the solar cell and the jig between the step of curing the solar cell and the jig on the stage and the step of detaching the solar cell, Wherein the plurality of pins press the lead wire toward the lower surface of the solar cell even in the post-heating step.

Description

Device for producing solar cells and method for producing solar cells Technical Field Embodiments of the present invention relate to a solar cell manufacturing apparatus and a solar cell manufacturing method. Background The solar cell is formed by providing a diode having a p-n junction on a substrate. When sunlight reaches the solar cell, the solar cell generates excitons, i.e., electron-hole pairs, and the excitons are split into electrons and holes, which migrate to the n-layer and the p-layer, respectively, thereby generating photovoltaic power across the p-n junction. Lapping refers to the process of forming a single solar cell module by placing wires on the solar cells to electrically connect the plurality of solar cells to each other. Here, the process of bonding the solar cell and the wire includes applying a conductive adhesive (ECA) to a surface of the solar cell and bonding the wire to the solar cell. The process of bonding a solar cell to a wire using a conductive adhesive is a next generation process for manufacturing a solar cell, and various researches have been made on specific embodiments thereof. Disclosure of Invention [ Technical problem ] The invention aims to provide a solar cell manufacturing device and a solar cell manufacturing method comprising a process of bonding a solar cell and a wire by using an adhesive. The above objects are provided by way of example and the present invention is not limited thereto. [ Technical solution ] 1. One aspect of the present invention relates to a solar cell manufacturing apparatus. The solar cell manufacturing apparatus includes a solar cell on which a wire is disposed, a stage on which the solar cell is disposed, and a guide bar disposed below the stage to be placed on a traveling path of the stage, wherein the stage includes a main body, a plate disposed to move upward or downward within the main body and to abut the guide bar disposed below the stage, and a plurality of pins disposed on an upper surface of the plate, and wherein the stage moves to be mounted on the guide bar when the stage moves, the guide bar pushes the plate upward, wherein the plurality of pins are disposed on the plate, and the upper surface of the plurality of pins makes contact with a lower surface of the solar cell while moving upward. 2. In embodiment 1, the guide rod may be formed with a slope portion (CHAMFERED PORTION) at a distal end thereof, and the stage may be mounted on the guide rod along the slope portion. 3. In embodiment 1, the solar cell manufacturing apparatus may further include a jig configured to press the upper surface of the solar cell so that the jig is in contact with the upper surface of the solar cell. 4. In embodiment 1, the solar cell may include a surface portion, a plurality of conductive wires disposed on the surface portion of the solar cell, and a plurality of conductive adhesive members disposed between the plurality of conductive wires and the surface portion and spaced apart from each other. 5. In embodiment 4, a plurality of pins may be provided at positions corresponding to a plurality of conductive adhesive members. 6. In embodiment 1, the body may include a wire insertion hole into which a wire provided on the solar cell is inserted, and a pin insertion hole into which a plurality of pins are inserted. 7. In embodiment 6, the depth (h) of the wire insertion hole may be in the range of about 5 to about 10 times the width of the wire. 8. In embodiment 1, the diameter of each of the plurality of pins may be in the range of about 3 to about 5 times the width of the wire. 9. In embodiment 1, a thickness (t 3) between the upper surfaces of the plurality of pins moving upward and the upper surface of the stage may be smaller than a thickness (t 2) of the wire. 10. Another aspect of the invention relates to a method of manufacturing a solar cell. The solar cell manufacturing method includes supplying a carrier, supplying a lead to the carrier, supplying a solar cell and a jig to the carrier supplied with the lead, preheating the solar cell and the jig on the carrier, curing the solar cell and the jig on the carrier, and unloading the solar cell, wherein the step of preheating the solar cell and the jig on the carrier includes lifting a plurality of pins to press the lead. 11. In embodiment 10, the carrier may include a body, a plate configured to move up or down within the body and abut a guide bar disposed below the carrier, and a plurality of pins disposed on an upper surface of the plate. 12. In embodiment 11, the step of preheating the solar cell and the jig on the stage includes moving the stage to an upper side of the guide bar, moving the plate upward, and the step of lifting the plurality of pins to press the wire includes moving the plurality of pins provided on the plate upward to press the wire provided between the plurality of pins and the solar cell toward a lower surface of the solar cell. 13. In embodiment 12, the solar cell m