| 摘要 |
<p>A 2-position 3-way solenoid valve (100) is disclosed having a hinged structure. The solenoid valve includes a hollow cylindrical housing (20) and first and second covers (21 and 22) hermetically coupled to both ends of the housing (20). The first cover has first and third ports (30, 34), and the housing has a second port (32). A diaphragm divides an inner chamber within the housing into first (24) and second chambers (26), and the first to third ports are communicated with the first chamber (24). The second chamber (26) contains an armature (60), a solenoid assembly (68) and a core (58), and the armature is fixed to a push rod (56) which extends to the first chamber through a diaphragm hole. A first spool for opening/closing the first port (30) is provided to an end of the push rod (56) within the first chamber (24). A step is provided to coupling portion of the first spool and the push rod (56) by the difference of their diameters, and a valve lever (546) extends perpendicularly to the push rod (56) to engage with the step (43). A second spool for opening/closing the third port is fixed to an end of the valve lever (546) in a perpendicular relationship. The valve lever (546) is connected to, by a pin (52), a supporting rod having one end thereof fixed to the first cover (21) to rock both ends of the valve lever (546). A spring (44) is disposed, between the valve lever (546) and the first cover (21) to surround the first spool.</p> |
