Patent ID: 11909311
Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 9:
10. An N-phase integrated inductor element, wherein N is a natural number greater than 3, the integrated inductor element comprises M inductor subunits, M is a natural number greater than or equal to 2, each of the M inductor subunit comprises at least i inductors, i is a natural number equal to 2, and N>M×i or N=M×i, wherein:
the i inductors of the same inductor subunit are coupled to each other, a coupling coefficient between the M inductor subunits is less than a coupling coefficient between the i inductors within the same inductor subunit,
wherein each of the M inductor subunits comprises a first magnetic column, a first winding and a second winding, the first magnetic column has an air gap, the first winding and the second winding are wound around the first magnetic column to form the i inductors in the inductor subunit, wherein i equals to 2, the first magnetic column of the M inductor subunits are arranged in parallel with each other, wherein the integrated inductor unit further comprises at least one decoupling magnetic column, the decoupling magnetic column has no air gap, the decoupling magnetic column does not have winding, the decoupling magnetic column is arranged in parallel with the first magnetic column, and the first magnetic column is coupled to the at least one of the decoupling magnetic column.