The utility model relates to the field of electromagnetic valve technology, in particular to the electromagnetic valve of a household miniature oxygen generator.

Background technology:

Electromagnetic valve is a device controlled by electromagnetism, which is an automation basic component used to control fluids. It belongs to actuators and is not limited to hydraulic or pneumatic systems. The solenoid valve can be combined with different circuits to achieve the expected control, and the accuracy and flexibility of the control can be guaranteed.

There are many types of solenoid valves, and different solenoid valves play a role in different positions of the control system. In existing technology, when the solenoid valve of an oxygen concentrator is energized, the switch between the inlet and working ports can only be completed through the valve stem. However, due to the different amount of gas entering from the inlet, the pressure inside the working port cannot be stabilized, resulting in friction damage between the valve stem and the valve body when the pressure inside the working port is too high, shortening the service life of the solenoid valve.