Solenoid valve coil pack
AssigneeApplied Power Inc.
InventorRobert A. Doll
Life of this patent
Estimating the term…
Abstract
A valve bank has a coil pack assembly with multiple solenoid coils bound to one another by a single resin body. An L-shaped magnetic (but not magnetized) bracket is also bound within the body and extends between upper pole pieces of the valves and the manifold in which the valves are mounted. A retainer plate holds the valves in the manifold, and helps complete the magnetic flux path circuit from the manifold end of the bracket to the lower pole pieces of the valves. A spring clip helps position the manifold end of the bracket close to the retainer plate. A circuit board for individually energizing the coils is also potted within the resin body.
Claims11
In a solenoid operated valve bank having multiple solenoid coil operated valves arranged in a manifold, each said valve having an upper pole piece extending outwardly of said manifold and a lower pole piece within said manifold, each of said valves having a separately actuable coil for actuating said valve when a voltage is applied to said coil, the improvement wherein said coils are bound to one another in a coil pack by a common body and said body binds a bracket to said coils which is common to said coils and made of a magnetic material, said bracket having an L-shaped cross-section and extending from adjacent to said upper pole pieces of said valves at one end of said L-shape, laterally along one end of said coils to a position alongside said coils, and then parallel to an axial direction of said coils alongside of said coils to an opposite end of said L-shape which is adjacent to said manifold.
Dependencies are inferred from the claim text.