Patent ID: 8147221
Filing Date: 2012-04-03
Classification: F04B

Abstract:
1. An electromagnetic micro-pump comprising: a substrate including a first face and a second face, with the first face including a groove; a top plate mounted on the first face of the substrate, with the top plate including an input hole, an output hole, and a through-hole, with each of the input hole, the output hole, and the through-hole extending through the top plate and in communication with the groove, with the through-hole being between the input hole and the output hole; an elastically deformable magnetic diaphragm mounted to an outer face of the top plate to seal the through-hole; and a coil unit mounted to the second face of the substrate and aligned with the through-hole, with the coil unit including an insulating layer, a coil, an electrode layer, and a connecting portion, with the insulating layer mounted to the second face of the substrate, with the coil embedded in the insulating layer, with the electrode layer mounted to a bottom face of the insulating layer, such that the insulating layer is between the substrate and the electrode layer, and with the connecting portion mounted in the insulating layer, such that the coil is electrically connected to the electrode layer via the connecting portion.