Magnetic float switch

摘要

A float switch with a float housing having a magnetically-activated, hermetically-sealed reed switch secured within an interior cavity in a first orientation and a permanent magnet positioned in a second orientation. The permanent magnet is movable within a chamber in the interior cavity between a first activation position and a second non-activation position. For connection to a pump, electrical conductors extend from the float housing at one end and are electrically coupled to the reed switch.

主权项

1. A float switch comprising:
a float housing including an interior cavity and an exterior; a reed switch in a first orientation, the reed switch being magnetically activated and hermetically sealed, the reed switch being secured within the interior cavity; a permanent magnet in a second orientation, the permanent magnet being movable between a first activation position and a second non-activation position, wherein the second orientation of the permanent magnet is perpendicular to the first orientation of the reed switch; the permanent magnet being positioned in and movable within a linear chamber, the linear chamber coincident with a central axis of the float housing to allow the float switch to operate in any orientation, the linear chamber being within the interior cavity and having an open end and a closed end, the open end being received by a recess in the float housing, the first activation position and the second non-activation position being within the linear chamber; the linear chamber having a surface finish, the surface finish at least partially influencing the movement and angle of operation of the permanent magnet; and electrical conductors extending from the float housing, the electrical conductors electrically coupling to the reed switch to create an electrical circuit.