Coil and magnetic powder integrated inductor and manufacturing method thereof

The invention provides a coil and magnetic powder integrated inductor. The coil and magnetic powder integrated inductor comprises a cubic magnetic material block (5) which is internally provided with an embedded coil (4), wherein an end electrode (6) is arranged on each of two opposite sides, each of the end electrodes is connected with one end of the coil, the magnetic material block consists of more than two kinds of magnetic powder in different average particle sizes and insulation resin, and the general formula of the compositions of the magnetic powder is Fe100-x-y-z SixCryBz. A manufacturing method comprises the following steps: (I) uniformly mixing the magnetic powder in different particle sizes; (II) mixing the magnetic powder and the insulation resin into a compound magnetic material group; (III) manufacturing the hollow coil; (IV) heating a forming mold and a lower punch, filling the compound magnetic material group and the hollow coil, molding in compression, preserving heat till the resin is solidified, and then demolding; (V) polishing the two end faces; and (VI) performing vacuum sputtering to prepare the electrode. The compression molding operation can be carried out with relatively low pressure, and the magnetic particle and the coil are barely damaged in the compressing process.