How to effectively solve the problem of static electricity in Photovoltaic Industry
The traditional structure of photovoltaic module is: photovoltaic glass-EVA (film)-battery sheet-EVA (film)-backplane, which is wrapped by aluminum frame, and the junction board is welded to form a complete crystal silicon module.
Photovoltaic glass and EVA film are poor conductors of electricity, and if there is static electricity, "electrostatic lines" will be produced during lamination of the photovoltaic module (as shown in the following figure), resulting in the degradation of the whole module.
Picture source: Shunfeng Optoelectronics
Method of eliminating static electricity in the process of photovoltaic module
In the photovoltaic module manufacturing process, the installation of ion electrostatic eliminator can effectively remove the static electricity in the manufacturing process and improve the product quality.
Dynetech ion electrostatic eliminator
▶ High frequency AC ionization mode.
▶ Automatically clean the discharge needle by turning on the machine.
▶ The air volume is 1 and 5 gears are adjustable.
▶ The wind direction is adjustable and locked.
▶ The LCD display screen can display the wind speed gear and cleaning cycle.
▶ Can be connected to PLC, I.O control, optional PNP/NPN.
Applicable scenarios: static electricity elimination of work table, slow assembly line, storage shelf；
Effect of ESD on the process of EVA membrane
In the production process of EVA film, there are a large number of rolling and reel links, and these actions will lead to the generation of high static charge.
Among them, the areas with the most serious static electricity are common in the central winding position and automatic cutting process.
Ion wind rods can be installed at the roller position of the equipment to eliminate the static charge caused by friction during the winding of EVA film.
The method of eliminating static electricity in EVA membrane process
▶ Pulse AC ionization mode.
▶ Can be connected to PLC, I.O control, optional PNP/NPN.
▶ Equipped with the latest ion balance system.
▶ The output frequency of positive and negative ions can be adjusted.
▶ Clean reminder function.
▶ Real-time display of working status and external ion levels
Product advantages: high speed in addition to static electricity, customizable equipment length maximum support 3000mm, suitable for high-speed operation of automation equipment.
▶ High frequency AC ionization mode.
▶ Can be connected to PLC, I.O control, optional PNP/NPN.
▶ The discharge needle can be replaced separately.
▶ The degree of ion balance can be within ±10V.
▶ Optional multi-components are available.
Product advantages:
Patented design, electrical separation.
Low failure rate, long product life and high safety.
Light in size, suitable for installation and use in narrow space