A photovoltaic module and photovoltaic system

By arranging battery strings and busbars in a cross-shaped manner, combined with jumpers and a reasonable layout of junction boxes, the problems of large superposition thickness and hidden cracks at the busbar connection points in photovoltaic modules have been solved, improving the reliability and waterproof performance of the modules and simplifying the production process.

CN122373480APending Publication Date: 2026-07-10ZHEJIANG AIKO SOLAR ENERGY TECH CO LTD +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG AIKO SOLAR ENERGY TECH CO LTD
Filing Date
2026-05-12
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

The existing photovoltaic modules have a large stacked thickness at the busbar connection points, which makes them prone to microcracks. In addition, the unreasonable layout of the junction boxes increases the risk of moisture intrusion, affecting the reliability and power generation efficiency of the modules.

Method used

The battery string and busbar structure is arranged in a cross pattern. The busbars are connected by first and second jumpers, which reduces the superposition thickness of the busbar connections. The junction box is also reasonably laid out, the circuit structure is optimized, and the risk of microcracks and moisture penetration is reduced.

Benefits of technology

It effectively reduces the superposition thickness at the joints, significantly reduces the risk of microcracks, improves the reliability and waterproof performance of the components, simplifies the production process, and reduces manufacturing difficulty and cost.

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    Figure CN122373480A_ABST
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Abstract

This invention discloses a photovoltaic module and a photovoltaic system. The photovoltaic module includes: multiple battery strings; multiple busbars located on the back of the photovoltaic module, the multiple busbars including: a first busbar, a second busbar, and a third busbar arranged along a first direction, and a fourth busbar and a fifth busbar arranged along a second direction; a first jumper and a second jumper arranged along the first direction, the first jumper electrically connecting the first busbar and the second busbar, and the second jumper electrically connecting the second busbar and the third busbar; a first junction box disposed on the back of the photovoltaic module, the first terminal of the first junction box being connected to the second busbar, the second terminal of the first junction box being connected to the fourth busbar, the third terminal of the first junction box being connected to the first jumper, and the fourth terminal of the first junction box being connected to the second jumper. This invention can reduce the thickness of the busbars and jumpers, and the connections between the busbars, reducing the risk of microcracks after pressure.
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