一种采用锡膏焊接的太阳能光伏板
By using solder paste to assemble photovoltaic wafers into power generation modules, and then applying a layer of solder paste to the circuit board, the entire assembly is heated to achieve welding. This method solves the problem of low welding efficiency in traditional photovoltaic panels and improves both welding and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG LONGGUANG LIGHTING ELECTRICAL CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional solar photovoltaic panels have low welding efficiency, as each photovoltaic chip is welded separately, resulting in low production efficiency.
The photovoltaic wafers are assembled into power generation modules by soldering with solder paste. A solder paste layer is placed on the circuit board and soldering is achieved by heating the whole module. This reduces the number of soldering positions and solder paste layers, and electrical connections are made using a soldering material layer.
It improves welding efficiency, reduces process difficulty, reduces the number of welding operations, and increases production efficiency.
Smart Images
Figure CN224521491U_ABST
Abstract
Claims
1. A solar photovoltaic panel employing solder paste welding, characterized by, include: The circuit board (100) has a soldering area (100a), wherein at least two soldering positions are arranged at intervals along a first direction, and a first solder paste layer (200) is provided on the soldering positions; At least two sets of power generation components (400) correspond one-to-one with all the soldering positions. Each set of power generation components (400) includes two photovoltaic wafers (410) arranged in a straight line along a second direction, which is perpendicular to the first direction. The opposite ends of the two photovoltaic wafers (410) of each set of power generation components (400) are electrically soldered to the first solder paste layer (200) on the corresponding soldering position. In the two adjacent sets of power generation components (400) in the first direction, one set of power generation components (400) is electrically connected to the first solder paste layer (200) below the other set of power generation components (400) through a solder material layer (500), so that the two adjacent sets of power generation components (400) in the first direction are electrically connected in series.
2. A solar photovoltaic panel soldered with solder paste according to claim 1, characterized in that, A portion of the welding material layer (500) is located on the side of the photovoltaic wafer (410) facing away from the circuit substrate (100). Both the positive and negative electrodes of the photovoltaic wafer (410) are located at the end of the photovoltaic wafer (410) closest to the welding position. One of the positive and negative electrodes of the photovoltaic wafer (410) faces the circuit substrate (100) for electrical welding with the corresponding first solder paste layer (200), while the other faces away from the circuit substrate (100) for welding with the corresponding welding material layer (500). 500) Electrical soldering, wherein there is a clearance distance (700) between two adjacent groups of power generation components (400), a circuit structure (110) is provided at the soldering position, a part of the circuit structure (110) is located at the corresponding clearance distance (700), the soldering material layer (500) is electrically connected to the corresponding circuit structure (110) from the corresponding clearance distance (700), and the circuit structure (110) is electrically soldered to the corresponding first solder paste layer (200).
3. A solar photovoltaic panel soldered with solder paste according to claim 2, characterized in that, The welding material layer (500) is configured as a welding strip.
4. A solar photovoltaic panel soldered with solder paste according to claim 3, characterized in that, The circuit structure (110) is provided with a second solder paste layer (300), the second solder paste layer (300) is located at the corresponding clearance distance (700), and the soldering material layer (500) is soldered to the corresponding second solder paste layer (300).
5. A solar photovoltaic panel soldered with solder paste according to claim 1, characterized in that, It also includes an encapsulation layer (600) that encapsulates all of the power generation components (400) on the circuit board (100).
6. A solar photovoltaic panel soldered with solder paste according to claim 1, characterized in that, On the welding area (100a), the welding area (100a) is also provided with a positive electrode pad (120) and a negative electrode pad (130). The welding position is located between the positive electrode pad (120) and the negative electrode pad (130). The positive electrode pad (120), all the power generation components (400) and the negative electrode pad (130) are connected in series in sequence.
7. A solar photovoltaic panel soldered with tin paste according to claim 6, characterized in that, The positive electrode pad (120) and the negative electrode pad (130) are electrically connected to the corresponding first solder paste layer (200) on the welding site through the welding strip.