The photovoltaic module humidity test chamber is a device used to test the performance of photovoltaic modules in humid and hot environments. It is mainly used to simulate high temperature and high humidity environmental conditions to evaluate the durability and reliability of photovoltaic modules.
Working principle: Temperature and humidity are controlled through electric heating and humidification using an electric heater and steam boiler. The temperature sensor is placed at the air outlet and adopts an upward supply and downward return method to make the temperature and humidity inside the box more uniform. The temperature controller controls the operation of the heater through a solid-state relay based on the feedback signal from the sensor to achieve accurate temperature control; The humidification system ensures the safe and stable operation of the steam boiler through water level control devices and anti dry burning devices, achieving accurate humidity regulation.
Box structure: The box is usually processed and formed by CNC machine tools, and the inner liner of the box is made of imported stainless steel mirror panels, which are easy to clean and prevent corrosion; The outer shell of the box is made of A3 steel plate spray painted, which increases the appearance texture and cleanliness. The box is equipped with a large observation window and lighting fixtures for easy observation of the situation inside. The bottom is made of high-quality fixed PU movable wheels for easy movement and fixation. There is also a testing hole on the left side for external testing power or signal lines.
Performance indicators: The temperature range is generally -40 ℃ -150 ℃, the humidity range is 30% RH-98% RH, the temperature fluctuation is ≤± 0.5 ℃, and the uniformity is ≤± 2 ℃.
Functional features: Equipped with an intelligent touch screen control system, the operation interface is simple and intuitive, making it easy to complete operations such as parameter settings, test startup, and data viewing. The system can also automatically record temperature, humidity, time and other data, and export them through a USB interface. It supports remote monitoring function, making it convenient for users to view the progress of the experiment anytime and anywhere.
Application areas: Mainly used for testing photovoltaic (PV) modules, including monocrystalline silicon modules, crystalline silicon PV modules, ground thin-film PV modules, etc. By simulating a humid and hot environment, it is possible to detect whether photovoltaic modules will experience performance degradation, material aging, and other issues during long-term use, providing important basis for quality control and research and development of photovoltaic modules.