Patent ID: 8446236
Filing Date: 2013-05-21
Classification: H01H

Abstract:
1. A PCB-embedded relay, comprising: a first coil, wound around a first ferromagnetic core and embedded in a first coil layer; a second coil, wound around a second ferromagnetic core and embedded in a second coil layer; a spacer disposed between the first coil layer and the second coil layer, the spacer having a bore extending between the first ferromagnetic core and the second ferromagnetic core; a first contact structure having a first gap therein and disposed between the first coil layer and the spacer; a second contact structure having a second gap therein and disposed between the second coil layer and the spacer; and a first permanent magnet, coated with an electrically conductive material and movably disposed in the bore, the first magnet being polarized along an axis extending between the first ferromagnetic core and the second ferromagnetic core; wherein, the first coil and the second coil are oriented such that, when the first coil and second coil are energized, the polarity of a first magnetic field generated by the first coil is opposite of the polarity of a second magnetic field generated by the second coil.