Solenoid valve

A solenoid valve which is operated so as to be switched between a closed valve state in which a valve element abuts on a valve seat by a spring member, and an open valve state in which a valve element is separated from the valve seat by a magnetic force against a spring force, the solenoid valve comprising:

• a fixed iron core having a magnetically-attracting surface;
• a resin case in which a coil wound around the fixed iron core and the fixed iron core are incorporated, the resin case having an opening through which the magnetically-attracting surface is exposed;
• a valve body attached to the case, a movable element being housed in a movable element housing chamber which is formed between the valve body and the case, the valve body and the movable element being operated in a unified fashion;
• a case side abutting surface which is formed in the case while protruding toward the movable element in comparison with the magnetically-attracting surface, and is opposed to the movable element;
• and
• a resin film provided on the magnetically-attracting surface, the resin film is provided with an iron core side abutting surface adjacent to the case side abutting surface,
• wherein the iron core side abutting surface is flush with the case side abutting surface, or arranged so as to protrude toward the movable element in comparison with the case side abutting surface.

A solenoid valve which is operated so as to be switched between a closed valve state in which a valve element abuts on a valve seat by a spring member, and an open valve state in which a valve element is separated from the valve seat by a magnetic force against a spring force, the solenoid valve comprising:

• a fixed iron core having a magnetically-attracting surface;
• a resin case in which a coil wound around the fixed iron core and the fixed iron core are incorporated, the resin case having an opening through which the magnetically-attracting surface is exposed;
• and
• a valve body attached to the case, a movable element being housed in a movable element housing chamber which is formed between the valve body and the case, the valve body and the movable element being operated in a unified fashion;
• wherein the spring member is a plate spring which has:
• a strip portion extending along the movable element, and a leg portion arranged at one end of the strip portion, and which is held in an engaging groove of the case.