The photovoltaic combiner box is precision sheet metal stamping, and the shell and internal structural parts are made with high-precision technology to adapt to the current convergence requirements of the photovoltaic system to ensure electrical safety and stability. The photovoltaic combiner box (PV COMBINER BOX) can converge the DC power of multiple photovoltaic modules in the photovoltaic power generation system, making it convenient to access inverters and other equipment for unified processing. The yellow warning sign with lightning on the box is a reminder that there is a risk of electric shock and that you should operate with caution. The knobs on both sides are marked "CLOSE" and "OPEN" to control the opening and closing of the box door. Operate according to the signs during operation and maintenance to ensure personnel safety.
Features | Details |
Excellent electromagnetic shielding | Using cold-rolled steel plates with a thickness of ≥2mm, a 360° shielding structure is formed by a continuous folding process, and with a conductive gasket, the electromagnetic radiation leakage value in the 1GHz frequency band is ≤30dB, which reduces harmonic interference and ensures data collection accuracy. |
High protection level | Through the "bending molding + sealing process", with silicone rubber sealing strips and stainless steel locks, the protection level reaches IP65 (water spray proof), and some can reach IP67 (short-term immersion), resisting outdoor moisture and sand and dust. |
Modular and efficient assembly | The internal bracket adopts the "U-shaped guide rail + buckle" design. It only takes 10 minutes to replace electrical components, which is 5 times more efficient than traditional screw fixing, and is suitable for the rapid operation and maintenance needs of photovoltaic power stations. |
Strong weather resistance | Select hot-dip galvanized steel (coating thickness ≥85μm) or aluminum alloy profiles, the surface is electrostatically powder-coated (coating 100-150μm), and the weather resistance test exceeds 5000 hours, which is suitable for complex environments such as coastal areas and windy sand. |
Product details
Precision sheet metal stamping of photovoltaic combiner boxes is the core process application of the current convergence link of photovoltaic power generation systems, laying a solid hardware foundation for the stable operation of combiner boxes.
Production process: First, according to the design requirements of the photovoltaic system, select weather-resistant materials such as cold-rolled steel and aluminum alloy, accurately cut the materials by laser cutting, and then use CNC punching machines to complete punching, bending, and forming to achieve integrated processing of the box shell and internal bracket. In the key process, the continuous folding process ensures the integrity of the electromagnetic shielding structure, and the sealing groove stamping accurately fits the sealing strip to ensure the protection performance.
Application scenario: In centralized photovoltaic power stations, batch-stamped combiner boxes are quickly spliced through standardized holes, and a single person can complete the installation of 10-15 units per day; in distributed photovoltaic projects, customized sheet metal combiner boxes are adapted to special-shaped scenes such as roofs and carports. Its lightweight design (aluminum alloy material weight reduction of 30%-40%) and high protection performance meet the flexible deployment needs of small photovoltaic systems.
Technical value: With high-precision stamping, the combiner box achieves "factory prefabrication + on-site quick installation", and the wind-resistant and earthquake-resistant design of the bracket reduces the failure rate by 70%; the sealing process controls the internal humidity below 20% RH to avoid electrical short circuits; electromagnetic shielding effectively reduces harmonic interference and improves the accuracy of power generation data collection, providing key support for the efficient and safe operation of photovoltaic systems, and promoting the diversified development of the "photovoltaic +" industry.
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China management center add.204, Building A, Phase 3, Jiewei Industrial Park, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, China
Headquarters tel.+86 134 3077 5139
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