Integrally-formed inductor

The invention relates to an integrally-formed inductor which comprises a magnetic core and a winding. At least one winding combination is embedded in the magnetic core, the winding combination comprises an inner winding and an outer winding which are mutually coupled, and the inner winding and the outer winding are annularly sleeved to form an inner and outer surrounding structure; pins of the inner winding and the outer winding are exposed on the surface of the magnetic core so as to be connected with an external circuit; the inner winding and the outer winding are arranged in parallel at intervals, and the coupling coefficient is more than 0.9 due to the distance between the inner winding and the outer winding. 本发明涉及一种一体成型电感，包括磁芯以及绕组；所述磁芯内埋入至少一个绕组组合，所述绕组组合包括相互耦合的内绕组和外绕组，所述内绕组和所述外绕组之间环套形成内外包围结构；所述内绕组和所述外绕组的引脚暴露于磁芯表面，以与外电路连接；所述内绕组和所述外绕组之间平行间隔地设置，所述内绕组和所述外绕组的间距使耦合系数为0.9以上。