Patent ID: 9169941
Filing Date: 2015-10-27
Classification: F16K,H01F,Y10T

Abstract:
1. A solenoid valve comprising: a valve configured to control a flow of a fluid; and a solenoid configured to operate the valve, wherein the valve includes: a holder having a double tube structure including an inner tube formed with a supply passage and an outer tube, a control passage being formed between the inner tube and the outer tube; a first connection port formed at a first end of the inner tube to connect the supply passage and the control passage; a ball installed within the supply passage to open and close the first connection port; a core coupled to a first end of the outer tube; a second connection port formed in the core and connected to the control passage; a load installed to extend through the second connection port and moved by the solenoid; and wherein the solenoid includes: a bobbin coupled to the core, wherein a pair of annular protrusions having different diameters is formed in a top surface of an upper flange of the bobbin, and wherein a clamping groove is formed between the pair of annular protrusions; a coil wound around an external circumferential surface of the bobbin; a plunger movably installed within the bobbin; a spring configured to elastically support the plunger toward a first end of the bobbin; and a case configured to contain a part of the holder, the core and the bobbin.