The structure of the solenoid valve coil is mainly composed of a pilot valve and a main valve. The main valve adopts a rubber sealing structure. In the normal position, the movable iron core seals the pilot valve port, the pressure in the valve cavity is balanced, and the main valve port is closed. When the coil is energized, an electromagnetic force is generated to suck up the movable iron core, and the medium in the main valve cavity leaks out of the pilot valve port, resulting in a pressure difference. The diaphragm or valve cup is quickly lifted up, the main valve port opens, and the valve becomes Passage. When the coil is powered off, the magnetic field disappears, the movable iron core resets, and the pilot valve port is closed. After the pressure in the pilot valve and main valve cavity is balanced, the valve is closed again. The coil of the solenoid valve refers to the inductor. The guide wires are wound one by one, and the wires are insulated from each other. The insulating tube can be hollow or contain an iron core or magnetic powder core, referred to as an inductor. Inductance can be divided into fixed inductance and variable inductance. The fixed inductance coil is made of wires wound around an insulating tube. The wires are insulated from each other. The insulating tube can be hollow or contain an iron core or Magnetic powder core, referred to as inductor or coil.
