| 摘要 |
PURPOSE: A solenoid pump is provided to bidirectionally control the flow of fluid by cutting off the reverse flow of the fluid using first to fourth check valves. CONSTITUTION: A solenoid pump(1000) comprises a housing(100), first and second directional coils(310,320), a drive unit(400), first and second check valves(500a,500b), and first and second opening and closing unit(600a,600b). The first and second directional coils are wound around the outer surface of the housing. The drive unit is formed inside the housing in a pipe shape. The first check valve is formed inside a first insertion portion of the drive unit and allows fluid to flow from a connection path of the drive unit to a first path(121). The second check valve is formed inside a second insertion portion of the drive unit and allows fluid to flow from the connection path to a second path(122). The first and second opening and closing units open and close first and second bypasses(131,132) of the housing.
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