Solenoid valve

A solenoid valve, comprising:

• a valve core formed with an inlet and an outlet;
• a valve dome sealing one end of the valve core;
• an armature provided inside the valve dome to be able to advance and retreat;
• and
• a plunger opening and closing the inlet of the valve core according to the advance and retreat of the armature,
• wherein the armature includes:
• a receiving groove recessed in an upper surface;
• a buffering member provided between the armature and the valve dome;
• and
• a damping spring received in the receiving groove so that an upper surface of the buffering member is in close contact with the valve dome and elastically supporting the buffering member to the valve dome,
• wherein the buffering member includes:
• a support part disposed between the upper surface of the armature and the valve dome to buffer and support the armature;
• and
• an insertion part connected to the support part and inserted into the receiving groove of the armature,
• wherein the receiving groove includes:
• a first receiving groove in which the insertion portion is received;
• and
• a second receiving groove connected to a lower end of the first receiving groove to receive the damping spring,
• wherein the armature includes a third receiving groove provided at a lower end of the receiving groove to receive the fluid flowing in through at least one flow path hole,
• wherein the buffering member includes the at least one flow path hole that communicates fluid from an outer side to an inner side of the receiving groove,
• wherein the second receiving groove becomes narrower in diameter toward a portion where the second receiving groove is connected to the third receiving groove, and an inner side surface thereof is formed to be inclined.