CN-224234080-U - Battery string and processing device thereof

Abstract

The application discloses a battery string and a processing device thereof, the battery string includes a plurality of battery pieces, a welding strip and a protector. The welding strip comprises a first welding section connected with the first battery piece and a second welding section connected with the second battery piece, wherein the first welding section and the second welding section are located on a path, a blank section is reserved on the path and located between the first welding section and the second welding section, the second battery piece is partially exposed through the blank section, the protection piece can reflect laser or buffer laser energy, the protection piece is fixed on the first battery piece or the second battery piece and located below the blank section, or the protection piece is fixed below the blank section. Through the arrangement, the protection performance of the second battery piece in the process of breaking the negative-interval battery string welding strip can be improved.

Inventors

• Request for anonymity
• Request for anonymity
• Request for anonymity
• Request for anonymity

Assignees

• 杭州弘晟智能科技有限公司

Dates

Publication Date

20260512

Application Date

20250605

Claims (10)

1. 1. A battery string, comprising: The solar cell comprises a plurality of cell pieces, a welding strip, a plurality of welding strip and a plurality of welding strip, wherein the cell pieces are sequentially arranged, two adjacent cell pieces are defined as a first cell piece and a second cell piece, the first cell piece comprises a first connecting end close to the second cell piece, the second cell piece comprises a second connecting end close to the first cell piece, the first connecting end is at least partially positioned above the second connecting end and is propped against the second connecting end, the welding strip comprises a first welding section connected with the first cell piece and a second welding section connected with the second cell piece, the first welding section and the second welding section are positioned on a path, a blank section is reserved on the path, and the blank section is positioned between the first welding section and the second welding section, so that part of the second cell piece is exposed through the blank section; The protection piece can reflect laser or buffer laser energy, is fixed on the first battery piece or the second battery piece and is positioned below the blank section, or is fixed below the blank section.
2. 2. The battery string of claim 1, wherein the battery string is configured to be connected to the battery, The protective piece is one of transparent ceramic coating, photonic crystal, graphene glue, silicon carbide silica gel, aerogel heat insulation glue, magnetic wave absorbing glue, multilayer composite glue film, liquid metal glue, bionic structure glue film, self-repairing laser-resistant glue and phase change material glue.
3. 3. The battery string of claim 1, wherein the battery string is configured to be connected to the battery, The height of the protection piece ranges from 0.1mm to 0.5mm, and the maximum width of the protection piece ranges from 0.5mm to 2mm.
4. 4. The battery string of claim 1, wherein the battery string is configured to be connected to the battery, The protective piece is adhered to the first battery piece or the protective piece is adhered to the second battery piece; Or the protective piece is adhered to the blank section.
5. 5. The battery string of claim 1, wherein the battery string is configured to be connected to the battery, The battery string is a BC battery string, the welding strips comprise positive electrode welding strips and negative electrode welding strips, the positive electrode welding strips and the negative electrode welding strips are alternately distributed, and the protecting piece is positioned below the positive electrode welding strips or the negative electrode welding strips between the first battery piece and the second battery piece.
6. 6. A processing apparatus for processing the battery string according to any one of claims 1 to 5, comprising: The cutting mechanism is provided with a free degree of movement and is used for cutting a blank section of the welding strip between the first battery piece and the second battery piece, and the cutting position of the cutting mechanism is positioned right above the protective piece on the second battery piece; and the bearing mechanism is used for bearing the battery string and is at least partially positioned below the cutting mechanism.
7. 7. The apparatus for manufacturing a battery string according to claim 6, wherein, The cutting mechanism adopts one of green laser cutting, ultraviolet laser cutting, ultrashort pulse laser cutting and laser water guide cutting.
8. 8. The apparatus for manufacturing a battery string according to claim 6, wherein, The processing device comprises a visual positioning module capable of determining the cutting position, and the visual positioning module is positioned above the bearing mechanism.
9. 9. The apparatus for manufacturing a battery string according to claim 8, wherein, The visual positioning module is installed on the cutting mechanism and moves along with the cutting mechanism.
10. 10. The apparatus for manufacturing a battery string according to claim 6, wherein, The bearing mechanism comprises a bearing surface for bearing the battery strings, and an adsorption hole capable of adsorbing the battery strings is formed in the bearing surface.

Description

Battery string and processing device thereof Technical Field The application relates to the technical field of photovoltaic products, in particular to a battery string and a processing device thereof. Background The photovoltaic cell string is formed by connecting a plurality of photovoltaic cell pieces in series through welding strips, so that a power generation unit with higher voltage is formed, and the photovoltaic cell string is a core component of a photovoltaic system. Existing battery strings include positive pitch battery strings and negative pitch battery strings. The positive-pitch battery strings refer to battery strings in which gaps exist between two adjacent battery pieces in the battery strings, and the negative-pitch battery strings refer to battery strings in which the two adjacent battery pieces in the battery strings are at least partially overlapped. When the battery string is maintained, the welding strips between two adjacent battery pieces in the battery string are broken by laser cutting. Gaps exist below the welding strips between two adjacent battery pieces of the positive-spacing battery string, so that the battery pieces cannot be damaged by laser cutting. However, as two adjacent battery pieces in the negative-pitch battery string are overlapped, the battery pieces are arranged below the welding strip between the two adjacent battery pieces in the battery string, and the battery pieces below the welding strip can be damaged when the welding strip is broken by the battery string. Therefore, how to improve the protection of the battery plate in the process of breaking the negative-pitch battery string is a technical problem that needs to be solved by those skilled in the art. Disclosure of utility model In order to solve the defects in the prior art, the application aims to provide a battery string and a processing device thereof, which can improve the protection performance on battery pieces in the process of breaking a battery string with a negative spacing In order to achieve the above purpose, the present application adopts the following technical scheme: A battery string includes a plurality of battery cells, a solder strip, and a protector. The plurality of battery pieces are sequentially arranged, two adjacent battery pieces are defined as a first battery piece and a second battery piece, the first battery piece comprises a first connecting end close to the second battery piece, the second battery piece comprises a second connecting end close to the first battery piece, the first connecting end is at least partially located above the second connecting end and abuts against the second connecting end, the welding strip comprises a first welding section connected with the first battery piece and a second welding section connected with the second battery piece, the first welding section and the second welding section are located on a path, a blank section is reserved on the path, the blank section is located between the first welding section and the second welding section, the second battery piece is partially exposed through the blank section, the protection piece can reflect laser or buffer laser energy, the protection piece is fixed on the first battery piece or the second battery piece and located below the blank section, or the protection piece is fixed below the blank section. Further, the protective piece is one of transparent ceramic coating, photonic crystal, graphene glue, silicon carbide silica gel, aerogel heat insulation glue, magnetic wave absorbing glue, multilayer composite glue film, liquid metal glue, bionic structure glue film, self-repairing laser-resistant glue and phase change material glue. Further, the height of the protector ranges from 0.1mm to 0.5mm, and the maximum width of the protector ranges from 0.5mm to 2mm. Further, the protection piece is adhered to the first battery piece, or the protection piece is adhered to the second battery piece, or the protection piece is adhered to the blank section. Further, the battery string is a BC battery string, the welding strips comprise positive electrode welding strips and negative electrode welding strips, the positive electrode welding strips and the negative electrode welding strips are alternately distributed, and the protection piece is positioned below the positive electrode welding strips or the negative electrode welding strips between the first battery piece and the second battery piece. On the other hand, in order to achieve the above object, the present application adopts the following technical scheme: A processing device of battery strings is used for processing the battery strings and comprises a cutting mechanism and a bearing mechanism. The cutting mechanism is provided with a blank section which has a degree of freedom of movement and is used for cutting a welding strip between the first battery piece and the second battery piece, the cutting position of the cutting mechanism is positioned