公开(公告)号：US20250029759A1

公开(公告)日：2025-01-23

申请号：US18772259

申请日：2024-07-14

Applicant: HUIZHOU POCO NEW INDUCTOR TECHNOLOGY CO., LTD. ,  SHENZHEN POCO MAGNETIC CO., LTD. ,  HUIZHOU POCO INDUSTRY CO., LTD. ,  HEYUAN POCO MAGNETIC CO., LTD.

Inventor： YUNFAN ZHANG ,  XIONGZHI GUO ,  LINA ZHANG ,  YAQING LI

IPC: H01F3/08 ,  H01F1/147 ,  H01F27/28 ,  H01F41/02

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.

公开(公告)号：US20250029768A1

公开(公告)日：2025-01-23

申请号：US18772243

申请日：2024-07-14

Applicant: HUIZHOU POCO NEW INDUCTOR TECHNOLOGY CO., LTD. ,  SHENZHEN POCO MAGNETIC CO., LTD. ,  HUIZHOU POCO INDUSTRY CO., LTD. ,  HEYUAN POCO MAGNETIC CO., LTD.

Inventor： ZHIDA LIU ,  XIONGZHI GUO ,  YUNFAN ZHANG

IPC: H01F27/28 ,  G05F1/32 ,  H01F27/24

Abstract: A coupled and integrated inductor provided in the present invention, includes a magnetic core and one or more conductive coil assembly embedded in the magnetic core; each conductive coil assembly comprises a first conductive coil and a second conductive coil coupled to the first conductive coil. The magnetic core is in close contact with both the first conductive coil and the second conductive coil; the first conductive coil and the second conductive coil pass through the magnetic core side by side, parallel and in close contact with each other, and the first conductive coil and the second conductive coil share a magnetic path. A trans-inductor voltage regulator provided, includes a circuit board and the coupled and integrated inductor electrically connected to the circuit board. The inductor has a coupling coefficient more than 92%, which improves the overall performance of the coupled and integrated inductor.

公开(公告)号：US20240274347A1

公开(公告)日：2024-08-15

申请号：US18437828

申请日：2024-02-09

Applicant: SHENZHEN POCO MAGNETIC CO., LTD. ,  HUIZHOU POCO INDUSTRY CO., LTD. ,  HEYUAN POCO MAGNETIC CO., LTD.

Inventor： ZHUOQUAN WU ,  XIONGZHI GUO ,  LINKAI MA ,  YANG CHEN ,  ZHIHANG JIANG ,  BOHUI WANG

IPC: H01F27/29 ,  H01F17/04 ,  H01F41/02 ,  H01F41/10

CPC classification number: H01F27/292 ,  H01F17/04 ,  H01F41/0246 ,  H01F2017/048 ,  H01F41/10

Abstract: The present invention provides an inductor and method for manufacturing the same. The inductor comprises: a magnetic core; a conductive coil embedded in the magnetic core; and electrodes exposed outside a lead surface of the magnetic core; wherein the lead surface of the magnetic core has a pair of diagonal corners; a pair of leads of the conductive coil respectively extend from an inside of the magnetic core; and terminals of the leads respectively extend from the diagonal corners of the magnetic core, are curved and flattened on the lead surface of the magnetic core to form planar electrodes.

公开(公告)号：US20250029769A1

公开(公告)日：2025-01-23

申请号：US18772248

申请日：2024-07-14

Applicant: HUIZHOU POCO NEW INDUCTOR TECHNOLOGY CO., LTD. ,  SHENZHEN POCO MAGNETIC CO., LTD. ,  HUIZHOU POCO INDUSTRY CO., LTD. ,  HEYUAN POCO MAGNETIC CO., LTD.

Inventor： TAO LUO ,  XIONGZHI GUO ,  YUNFAN ZHANG

IPC: H01F27/28 ,  H01F27/24 ,  H01F27/32 ,  H05K1/18

Abstract: An inductor provided in the present invention, includes a magnetic core and one or more conductive coil assembly embedded in the magnetic core; each conductive coil assembly comprises an inner conductive coil and an outer conductive coil surrounding the inner conductive coil. The inner conductive coil is enclosed in the outer conductive coils to form an inner and outer nested structure; the inner conductive coil and the outer conductive coil are arranged in parallel and spaced apart at a distance therebetween closed enough to obtain a coupling coefficient of more than 0.9.

公开(公告)号：US20250029770A1

公开(公告)日：2025-01-23

申请号：US18772257

申请日：2024-07-14

Applicant: HUIZHOU POCO NEW INDUCTOR TECHNOLOGY CO., LTD. ,  SHENZHEN POCO MAGNETIC CO., LTD. ,  HUIZHOU POCO INDUSTRY CO., LTD. ,  HEYUAN POCO MAGNETIC CO., LTD.

Inventor： TAO LUO ,  XIONGZHI GUO ,  YUNFAN ZHANG

IPC: H01F27/28 ,  H01F27/24 ,  H01F41/04

Abstract: An inductor provided in the present invention, includes a magnetic core and one or more conductive coil assembly embedded in the magnetic core; each conductive coil assembly comprises an inner conductive coil and an outer conductive coil coupled to the inner conductive coil. The inner conductive coil and the outer conductive coil are insulated from each other; the inner conductive coil rans through the outer conductive coil whereby most of or all magnetic field lines of the inner conductive coil pass through the outer conductive coil. A trans-inductor voltage regulator provided, includes a circuit board and the inductor electrically connected to the circuit board. The inductor has a coupling coefficient more than 98%.