SOLENOID VALVE FOR BRAKE SYSTEM

摘要

Disclosed herein is a solenoid valve for a brake system capable of reducing noise and vibration caused during operation of the solenoid valve. The solenoid valve for a brake system includes a valve core having an inlet and an outlet, a valve dome configured to cover one end portion of the valve core, an armature provided to be advanced and retreated in the valve dome, and a plunger configured to open or close the inlet of the valve core based on the advance and retreat of the armature, wherein an upper surface of the armature is recessed to form an insertion recess, a buffer member configured to buffer an impact between the armature and the valve dome is provided between the armature and the valve dome, the buffer member includes a support part interposed between the upper surface of the armature and the valve dome and configured to buffer and support the armature, an insertion part connected to the support part and inserted into the insertion recess, an upper surface of the support part is pressurized to the valve dome and the insertion part is elastically deformed in an inner direction of the insertion recess and inserted toward a lower portion of the insertion recess when the armature is moved in an upper direction and closer to the valve dome, and the insertion part is elastically restored and moved toward an upper portion of the insertion recess and a lower surface of the support part is separated from an upper surface of the armature when the armature is moved in a lower direction and away from the valve dome.

主权项

1. A solenoid valve for a brake system, comprising:
a valve core having an inlet and an outlet; a valve dome configured to cover one end portion of the valve core; an armature provided to be advanced and retreated in the valve dome; and a plunger configured to open or close the inlet of the valve core based on the advance and retreat of the armature, wherein an upper surface of the armature is recessed to form an insertion recess, a buffer member configured to buffer an impact between the armature and the valve dome is provided between the armature and the valve dome, the buffer member includes a support part interposed between the upper surface of the armature and the valve dome and configured to buffer and support the armature and an insertion part connected to the support part and inserted into the insertion recess, when the armature is moving in an upper direction and closer to the valve dome, an upper surface of the support part is pressurized against the valve dome and the insertion part is elastically deformed in an inner direction of the insertion recess and inserted toward a lower portion of the insertion recess, and when the armature is moved in a lower direction and away from the valve dome, the insertion part is elastically restored and moved toward an upper portion of the insertion recess and a lower surface of the support part is separated from the upper surface of the armature.