Inductor and method for manufacturing same

Abstract

An inductor provided in the present invention, includes a magnetic core made of soft magnetic powder and a wire coil embedded inside the magnetic core. A method for manufacturing the inductor includes steps of: a pressing and molding step; and an annealing step. At the pressing and molding step, placing a wire coil in a mold, filling a cavity of the mold with soft magnetic powder surrounding the wire coil, molding at a pressure of 12˜24 T/cm2 to obtain a raw inductor. At the annealing step, placing the raw inductor in a heat furnace for calcinating and annealing so as to release residual stress inside the magnetic core and obtain the integrated inductor. In the present invention, a high-density, high-permeability inductor can be obtained, and no need to limit powder particle size of the soft magnetic powder.

Dependencies are inferred from the claim text.