metal junction box

Hongyu is one of the professional manufacturers of metal junction boxes. This is a connection device between solar panel arrays and solar electrical control equipment, and it is an indispensable and important component in photovoltaic power generation.

Each solar cell module needs to be equipped with a set of metal junction boxes and a pair of connectors, which play a crucial role in the connection and protection between the modules.

Material selection and process flow

According to relevant national standards and requirements, as well as the application scenarios and environments of the stainless steel junction box, such as corrosion resistance, high-temperature resistance, extreme weather resistance and other properties, select appropriate steel, aluminum alloy, plastic, etc.

Steel plates or aluminum alloy materials need to be processed into the required shape and structure through shearing, bending, stamping and other methods.

After processing is completed, surface deburring, grinding and other processing are required to ensure that the product surface is smooth and flat.

Assemble the processed components, including assembly, fixation, wiring, etc., and conduct a comprehensive inspection after assembly to ensure that the product quality meets the requirements.

Inspect the electrical and mechanical properties of the products to ensure their stable and reliable quality. The inspection contents include appearance inspection, electrical performance inspection, reliability testing, etc. Only after passing the inspection can the packaging and shipment be carried out.

Effect

With the continuous increase in the power of battery modules, the battery conversion efficiency has also been improving year by year, and the working current of photovoltaic systems has also been significantly enhanced. The stainless steel junction box, as an important connection and protection device between battery modules, is responsible for the power output of photovoltaic modules and line protection. To meet the usage requirements, the junction box needs to have a relatively high current-carrying capacity. The current-carrying capacity is closely related to many indicators such as heat dissipation, conduction efficiency and reliability.

Therefore, HY has always maintained synchronous technological innovation in the production process of photovoltaic module junction boxes to adapt to the rapid development of battery technology. Photovoltaic module junction boxes are developing towards higher current-carrying capacity, better heat dissipation performance, greater system stability and lower production costs.

Product preventive measures

The prevention of metal j box focuses on correct installation and regular inspection. First of all, it is necessary to ensure that the opening size of the cable joint matches that of the junction box and tighten the sealing cover. This is the key to ensuring the protection level. Secondly, when installing, the grounding screw provided inside the box must be used to reliably ground the box body. Finally, in damp or corrosive environments, it is necessary to regularly check whether the surface of the box body and the sealing ring are aged or damaged.