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CN-122028542-A - Manufacturing method of photovoltaic module and production equipment of photovoltaic module

CN122028542ACN 122028542 ACN122028542 ACN 122028542ACN-122028542-A

Abstract

The application relates to a manufacturing method of a photovoltaic module and production equipment of the photovoltaic module, wherein the manufacturing method of the photovoltaic module comprises the steps of arranging a conductor on a battery piece; the method comprises the steps of placing a welding strip on a battery piece, enabling the welding strip to be in contact with a conductor, solidifying the conductor, fixing the welding strip by the conductor, enabling the battery piece to be connected into a battery string by the welding strip, arranging a packaging layer and a cover plate on two sides of the battery piece to form a piece to be laminated, laminating the piece to be laminated, and enabling the welding strip to be electrically connected with the battery piece. In the application, the conductor plays a role of pre-fixing the welding belt, so that a glue point is not required to be arranged on the battery piece, the production process of the photovoltaic module is simplified, and the production cost of the photovoltaic module is reduced. The lamination temperature is lower than the temperature for directly welding the welding strip and the grid line electrode on the battery piece, so that the battery piece is prevented from warping caused by high welding temperature, the probability of hidden cracking and fragments of the battery piece is reduced, and the reliability of the produced photovoltaic module is improved.

Inventors

  • Bi Shuqin
  • PENG YINGYING

Assignees

  • 晶科能源(海宁)有限公司

Dates

Publication Date
20260512
Application Date
20260413

Claims (12)

  1. 1. A method of manufacturing a photovoltaic module, the method comprising: Arranging a conductor on the battery piece; Placing a solder strip on the battery piece, the solder strip being in contact with the electrical conductor; solidifying the electric conductor, and fixing the welding strip by the electric conductor, wherein the welding strip connects the battery pieces into a battery string; arranging a packaging layer and a cover plate on two sides of the battery piece to form a piece to be laminated; Laminating the piece to be laminated, wherein the welding strip is electrically connected with the battery piece; the step of curing the electrical conductor comprises: Heating the electrical conductor, the electrical conductor being partially melted; cooling the electrical conductor, at least part of the solder strip being surrounded by the solidified electrical conductor.
  2. 2. The method of manufacturing a photovoltaic module according to claim 1, wherein the highest temperature T1 of heating the conductor satisfies 100 ℃ T1 180 ℃ or less; and/or heating the conductor for a time t1 of 10 s≤t1≤20s.
  3. 3. The method of manufacturing a photovoltaic module according to claim 1, wherein the to-be-laminated member is heated while the to-be-laminated member is laminated, and the solder ribbon is electrically connected to the electrical conductor; The maximum temperature at which the to-be-laminated member is heated is higher than the maximum temperature at which the electrical conductor is heated.
  4. 4. The method of manufacturing a photovoltaic module according to claim 3, characterized in that the maximum temperature T2 of heating the laminate to be laminated is 140 ℃ or less and T2 or less than 160 ℃; and/or heating the to-be-laminated piece for a time t2 of 18 min-t 2-25 min.
  5. 5. The method of manufacturing a photovoltaic module according to any one of claims 1 to 4, further comprising, before curing the electrical conductor: a fixing device limits the movement of the welding strip; after curing the electrical conductor, the method for manufacturing the photovoltaic module further comprises the following steps: The fixing device releases the limitation of the welding strip.
  6. 6. The method for manufacturing a photovoltaic module according to any one of claims 1 to 4, wherein the step of disposing a conductor on a cell, the cell being a split cell; the manufacturing method of the photovoltaic module further comprises the following steps of: Cutting the whole battery piece into at least two pieces of the piece-divided battery pieces.
  7. 7. The method of manufacturing a photovoltaic module according to claim 6, wherein before the step of cutting the entire piece of the cell sheet into at least two pieces of the divided piece of the cell sheet, the method further comprises: setting an insulating part on the whole battery piece, and solidifying the insulating part; or after cutting the whole battery piece into at least two piece of piece-divided battery pieces, the manufacturing method of the photovoltaic module further comprises the following steps: and arranging an insulating part on the segmented battery piece, and curing the insulating part.
  8. 8. A production apparatus of a photovoltaic module, characterized in that the production apparatus of a photovoltaic module according to any one of claims 1 to 7 is applied, comprising: a first printing device for providing an electrical conductor on the battery sheet; the first placing device is used for placing the welding strip on the battery piece; a first curing device for curing the conductor Assembling means for forming the to-be-laminated member; laminating means for laminating the laminate to be laminated.
  9. 9. The production facility of photovoltaic module according to claim 8, wherein the first solidification device includes a placement platform, and an adsorption portion is disposed on the placement platform, and the adsorption portion can adsorb the battery piece.
  10. 10. The apparatus for producing a photovoltaic module according to claim 8, further comprising: And the fixing device is used for fixing the welding strip.
  11. 11. The apparatus for producing a photovoltaic module according to claim 8, further comprising: The cutting device is used for cutting the whole battery piece; and the adjusting device is used for adjusting the posture of the battery piece.
  12. 12. The apparatus for producing a photovoltaic module according to claim 8, further comprising: a second printing device for providing an insulating part on the battery piece; And a second curing device for curing the insulating part.

Description

Manufacturing method of photovoltaic module and production equipment of photovoltaic module Technical Field The application relates to the technical field of photovoltaics, in particular to a manufacturing method of a photovoltaic module and production equipment of the photovoltaic module. Background The photovoltaic module can directly convert solar radiation energy into electric energy, and is mainly based on photovoltaic effect of crystalline silicon, namely when photons of sunlight are absorbed by semiconductor crystalline silicon, electron-hole pairs are generated, and when the electron-hole pairs reach a p-n junction formed by p-type crystalline silicon and n-type crystalline silicon, the electron-hole pairs are separated to two sides of the p-n junction by a junction electric field, and when the junction electric field is externally connected with a load, photocurrent is formed, and electric energy is output. The photovoltaic module comprises battery pieces and welding strips, and the welding strips connect the battery pieces into strings. The welding strip is welded on the battery piece by the series welding machine, and the battery piece is easy to warp and even is hidden to crack and chip due to higher temperature during welding. Disclosure of Invention The application provides a manufacturing method of a photovoltaic module and production equipment of the photovoltaic module, and aims to solve the problem that a battery piece of the photovoltaic module is easy to warp. The manufacturing method of the photovoltaic module provided by the embodiment of the application comprises the following steps: Arranging a conductor on the battery piece; Placing a solder strip on the battery piece, the solder strip being in contact with the electrical conductor; solidifying the electric conductor, and fixing the welding strip by the electric conductor, wherein the welding strip connects the battery pieces into a battery string; arranging a packaging layer and a cover plate on two sides of the battery piece to form a piece to be laminated; and laminating the piece to be laminated, wherein the welding strip is electrically connected with the battery piece. In one possible design, the step of curing the electrical conductor includes: Heating the electrical conductor, the electrical conductor being partially melted; cooling the electrical conductor, at least part of the solder strip being surrounded by the solidified electrical conductor. In one possible design, the maximum temperature T1 at which the electrical conductor is heated is 100 ℃ T1 180 ℃ and/or the time T1 at which the electrical conductor is heated is 10s 120 s. In one possible design, the to-be-laminated member is heated while the to-be-laminated member is laminated, the solder ribbon is electrically connected with the electric conductor, and the maximum temperature for heating the to-be-laminated member is higher than the maximum temperature for heating the electric conductor. In one possible design, the maximum temperature T2 of the laminate to be heated is 140 ℃ less than or equal to T2 less than or equal to 160 ℃ and/or the time T2 of the laminate to be heated is 18min less than or equal to T2 less than or equal to 25min. In one possible design, the method of manufacturing the photovoltaic module further comprises, prior to curing the electrical conductor: a fixing device limits the movement of the welding strip; after curing the electrical conductor, the method for manufacturing the photovoltaic module further comprises the following steps: The fixing device releases the limitation of the welding strip. In one possible design, the steps include disposing an electrical conductor over a battery, the battery being a segmented battery; the manufacturing method of the photovoltaic module further comprises the following steps of: Cutting the whole battery piece into at least two pieces of the piece-divided battery pieces. In one possible design, the method for manufacturing the photovoltaic module further comprises the following steps before cutting the whole cell into at least two pieces of the piece-divided cell: setting an insulating part on the whole battery piece, and solidifying the insulating part; or after cutting the whole battery piece into at least two piece of piece-divided battery pieces, the manufacturing method of the photovoltaic module further comprises the following steps: and arranging an insulating part on the segmented battery piece, and curing the insulating part. The production equipment of the photovoltaic module provided by the embodiment of the application is applicable to the manufacturing method of the photovoltaic module, and comprises the following steps: a first printing device for providing an electrical conductor on the battery sheet; the first placing device is used for placing the welding strip on the battery piece; a first curing device for curing the conductor Assembling means for forming the to-be-laminated member;