Gas proportional valve and electromagnetic driving device thereof

Abstract

The invention provides a gas proportional valve. The gas proportional valve comprises an electromagnetic driving device. The electromagnetic driving device comprises a movable coil assembly and a wiring terminal part, the movable coil assembly comprises an excitation winding, and the excitation winding is provided with a first wire end and a second wire end. The wiring terminal part comprises a first insert and a second insert. The electromagnetic driving device further comprises a first reed assembly and a second reed assembly, the first reed assembly is provided with a first flow guide part,the second reed assembly is provided with a second flow guide part, the first wire end and the first reed assembly are directly or indirectly electrically connected, the second wire end and the second reed assembly are directly or indirectly electrically connected, the first flow guide part and the first insert are electrically connected, and the second flow guide part and the second insert are electrically connected. A reliable flow guide effect can be achieved through a first reed and a second reed which serve as coil conductors, and the actuation reliability of the electromagnetic drivingdevice is relatively improved.

Description

technical field [0001] The invention relates to the technical fields of electromagnetic drive control and gas control, in particular to a gas proportional valve and an electromagnetic drive device thereof. Background technique [0002] The gas proportional valve includes an electromagnetic drive device, which includes a moving coil assembly. The moving coil assembly type electromagnetic drive device is connected by braided copper wire or wire. One end of the wire is welded to the coil head and coil end respectively, and the other end It is welded with the terminal of the electromagnetic drive device shell, and the wire is used as a coil conductor to receive current through the terminal of the electromagnetic drive device shell, so that the moving coil assembly can move axially. When the axis is actuated, it will move together with the wire, which will have a certain pulling force on the wire. In a high-frequency actuation environment, it will increase the possibility of fati...

AI Technical Summary

Problems solved by technology

[0002] The gas proportional valve includes an electromagnetic drive device, which includes a moving coil assembly. The moving coil assembly type electromagnetic drive device is connected by braided copper wire or wire. One end of the wire is welded to the coil head and coil end respectively, and the other end It is welded with the terminal of the electromagnetic drive device shell, and the wire is used as a coil conductor to receive current through the terminal of the electromagnetic drive device shell, so that the moving coil assembly can move axially. When the axis is actuated, it will move together with the wire, which will have a certain pulling force on the wire. In a high-frequency actuation environment, it will increase the possibility of fatigue fracture of the wire, affect the reliability of the electrical connection, and thus affect the gas proportional valve. normal action

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