Patent ID: 6749175
Filing Date: 2004-06-15
Classification: F16K

Abstract:
A solenoid for a solenoid valve mounted to a solenoid valve for driving a channel-switching valve member, said solenoid comprising:a non-magnetic bobbin having a center hole extending in an axial direction of the bobbin and wound around an outer periphery; a magnetic case having a side wall portion covering a side surface of the bobbin and an end wall portion formed on one end of the side wall portion and covering one end surface of the bobbin in the axial direction; an annular magnetic plate having a center hole coaxially connected to the center hole of said bobbin and connected to the magnetic case on the side of the other end surface of the bobbin; and a moving core movably accommodated in the bobbin and the center hole of the magnetic plate, wherein the end wall portion of the magnetic case acts as a stationary core, a portion of the end wall portion covering the center hole of the bobbin is provided with a pole face for adsorbing the moving core, and wherein the side wall portion and the end wall portion of the magnetic case are integrally formed and have uniform thickness as a whole.