What kind of encapsulation adhesive is suitable for packaging solar inverters?
Mar 06,2024 Hanast
An inverter is a power conversion device that plays a very important role in solar photovoltaic modules. Its function is to convert the direct current of the solar battery into alternating current for household use. Due to the long-term resistance of the inverter to the effects of outdoor weather, to ensure its stability, it is usually necessary to use adhesive packaging to protect the internal components of the inverter.
What type of potting adhesive is suitable for packaging solar inverters, First, analyze according to the equipment requirements:
1. The adhesion of the substrate and the flowability of the potting adhesive are the basic requirements, that can ensure the airtightness of the inverter sealing; The second is the protective and electrical performance of the sealing adhesive, because the inverter operates outdoors for a long time, having excellent protective performance is very helpful for its long-term operation, and excellent electrical performance can also make the inverter operate more stably.
2. During the operation of solar inverters, a certain amount of heat is generated, especially in summer when the high-temperature environment brings low temperatures to the equipment. Therefore, it is necessary to use sealing adhesive with certain thermal conductivity to help stabilize the inverter temperature.
3. There are multiple components inside the solar inverter, and if one of them is damaged, it needs to be repaired. If the adhesive layer is too hard, it is inconvenient. Therefore, the adhesive used for packaging needs to be elastic after curing to facilitate maintenance.
Based on the above analysis, the performance of silicone compound is more in line with:
1. Organic silicon potting adhesive has very stable usability and is not affected by UV, high temperature, humidity, or ozone even in harsh environments. It also has good adhesion to glass and other photovoltaic module materials; Meanwhile, excellent insulation and resistance performance can also provide certain assistance for the stable operation of solar inverters
2. After curing, the silicone sealant becomes an elastic silicone colloid with strong resistance to external forces and impacts, as well as excellent thermal conductivity, which can solve both external and internal problems. The use of silicone sealant can help you solve these problems.