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CN-122028543-A - Photovoltaic module

CN122028543ACN 122028543 ACN122028543 ACN 122028543ACN-122028543-A

Abstract

The invention discloses a photovoltaic module which comprises a plurality of battery strings and a first reflecting structure, wherein the battery strings are arranged at intervals along a first direction and are provided with first gaps, each battery string comprises a plurality of batteries and an electric connecting piece, the batteries are arranged at intervals along a second direction, two adjacent batteries are electrically connected through the electric connecting piece and are provided with second gaps, the first direction is vertical to the second direction, the first reflecting structure is arranged on one side of the battery strings, the first reflecting structure extends along the first direction and corresponds to the second gaps, and an insulating region is formed at the position, corresponding to the second gaps, of the first reflecting structure. Through setting up first reflection of light structure in one side of glass, first reflection of light structure forms the insulating region in the position that first clearance corresponds with the second clearance to can prevent that two adjacent battery strings from taking place the short circuit, and then can guarantee photovoltaic module's function and efficiency.

Inventors

  • XU TAO
  • LI QIGUANG
  • DONG JINGBING

Assignees

  • 阿特斯阳光电力集团股份有限公司
  • 常熟阿特斯阳光电力科技有限公司

Dates

Publication Date
20260512
Application Date
20241112

Claims (10)

  1. 1. A photovoltaic module (100), characterized by comprising: A plurality of battery strings (20), wherein the plurality of battery strings (20) are arranged at intervals along a first direction and are provided with a first gap (23), each battery string (20) comprises a plurality of batteries (21) and an electric connecting piece (22), the plurality of batteries (21) are arranged at intervals along a second direction, two adjacent batteries (21) are electrically connected through the electric connecting piece (22) and are provided with a second gap (24), and the first direction is perpendicular to the second direction; The first light reflecting structures (30) are arranged on one sides of the battery strings (20), the first light reflecting structures (30) extend along the first direction and correspond to the second gaps (24), and insulating areas are formed at positions of the first gaps (23) corresponding to the second gaps (24) on the first light reflecting structures (30).
  2. 2. The photovoltaic module (100) according to claim 1, wherein the first light reflecting structure (30) comprises: a first film layer (31); The second film layer (32), second film layer (32) set up in one side of first film layer (31), second film layer (32) are metal construction film layer, second film layer (32) are in first clearance (23) with the position department that second clearance (24) corresponds is formed with fracture (33), fracture (33) form the insulating region.
  3. 3. The photovoltaic module (100) according to claim 2, characterized in that the second film layer (32) is arranged on both sides of the first film layer (31), the second film layer (32) on the side of the first film layer (31) facing the cell string (20) being formed with the interruptions (33).
  4. 4. A photovoltaic module (100) according to claim 3, characterized in that the second film layer (32) on the side of the first film layer (31) remote from the cell string (20) is formed with the interruptions (33).
  5. 5. The photovoltaic module (100) according to claim 3 or 4, characterized in that the second film layer (32) forms the fracture (33) by means of laser ablation.
  6. 6. The photovoltaic module (100) according to claim 1, characterized in that the length of the insulating region in the first direction is L1, L1 satisfying the relation 0.02mm +.l1 +.2 mm, and/or The photovoltaic module (100) further comprises: and a glass (10), wherein a plurality of the battery strings (20) and the first light reflecting structure (30) are arranged on one side of the glass (10).
  7. 7. The photovoltaic module (100) according to claim 1, wherein the length of the insulating region in the first direction is L1, the plurality of cell strings (20) comprises adjacent first and second cell strings, the minimum distance from the electrical connector (22) closest to the second cell string in the first cell string to the electrical connector (22) closest to the first cell string in the second cell string is L2, and L1 and L2 satisfy the relation L1< L2.
  8. 8. The photovoltaic module (100) according to any of claims 1-7, further comprising: the second light reflecting structures (40) are arranged on one sides of the battery strings (20), and the second light reflecting structures (40) extend along the second direction and correspond to the first gaps (23).
  9. 9. The photovoltaic module (100) according to claim 8, characterized in that, at a position of the first gap (23) corresponding to the second gap (24), the second light reflecting structure (40) is located at a side of the insulating region facing the cell string (20) so as to at least partially cover the insulating region.
  10. 10. The photovoltaic module (100) according to claim 9, wherein the length of the insulating region in the first direction is L1, the width of the second light reflecting structure (40) in the first direction is L3, and L1 and L3 satisfy the relation L1< L3.

Description

Photovoltaic module Technical Field The invention relates to the technical field of photovoltaics, in particular to a photovoltaic module. Background Currently, in order to improve the light energy utilization rate of a photovoltaic module, a reflective film is generally disposed in a gap between cells of the photovoltaic module. The reflective film in the photovoltaic module is a metal structure layer, the metal structure layer is arranged in a gap between the batteries, the welding strips are connected between the batteries, so that the metal structure layer can be penetrated by the welding strips, battery communication between two adjacent battery strings is caused, a short circuit phenomenon occurs between the battery strings, battery failure is caused, and the probability of the photovoltaic module failure is increased. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a photovoltaic module that can prevent a short circuit between battery strings, thereby ensuring the function and efficiency of the photovoltaic module. The photovoltaic module comprises a plurality of battery strings and a first reflecting structure, wherein the battery strings are arranged at intervals along a first direction and are provided with first gaps, each battery string comprises a plurality of batteries and an electric connecting piece, the batteries are arranged at intervals along a second direction, two adjacent batteries are electrically connected through the electric connecting piece and are provided with second gaps, the first direction is perpendicular to the second direction, the first reflecting structure is arranged on one side of the battery strings, the first reflecting structure extends along the first direction and corresponds to the second gaps, and an insulating area is formed at a position of the first gaps corresponding to the second gaps. According to the photovoltaic module, the first reflecting structure forms the insulating area at the position corresponding to the first gap and the second gap, so that the two adjacent battery strings can be isolated in the insulating area in an insulating way, the two adjacent battery strings can be prevented from being short-circuited, the functions and the efficiency of the photovoltaic module can be further ensured, and the reliability of the photovoltaic module is improved. In some examples of the invention, the first light reflecting structure comprises a first film layer and a second film layer, wherein the second film layer is arranged on one side of the first film layer, the second film layer is a metal structure film layer, a fracture is formed at a position of the first gap corresponding to the second gap, and the fracture forms the insulation region. In some examples of the present invention, the second film layer is disposed on both sides of the first film layer, and the second film layer located on a side of the first film layer facing the battery string is formed with the fracture. In some examples of the invention, the second film layer located on a side of the first film layer remote from the battery string is formed with the break. In some examples of the invention, the second film layer forms the fracture by laser ablation. In some examples of the invention, the length of the insulating region in the first direction is L1, L1 satisfies the relation 0.02mm < L1 < 2mm, and/or the photovoltaic module further comprises glass, and a plurality of the battery strings and the first light reflecting structures are arranged on one side of the glass. In some examples of the present invention, the length of the insulating region in the first direction is L1, the plurality of battery strings includes adjacent first and second battery strings, a minimum distance from the electrical connector closest to the second battery string in the first battery string to the electrical connector closest to the first battery string in the second battery string is L2, and L1 and L2 satisfy a relation of L1< L2. In some examples of the invention, the photovoltaic module further includes a second light reflecting structure disposed on one side of the plurality of strings, the second light reflecting structure extending in the second direction and corresponding to the first gap. In some examples of the invention, the second light reflecting structure is located on a side of the insulating region facing the battery string at a position of the first gap corresponding to the second gap to at least partially cover the insulating region. In some examples of the present invention, the length of the insulating region in the first direction is L1, the width of the second light reflecting structure in the first direction is L3, and L1 and L3 satisfy the relationship of L1< L3. Compared with the prior art, the invention adopts the mode that the first reflecting