公开(公告)号：US20230154672A1

公开(公告)日：2023-05-18

申请号：US17987239

申请日：2022-11-15

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zelong ZHANG ,  Zhuyong HUANG ,  Xiaoqing HU ,  Qunyou ZHANG ,  Wen ZHAO

IPC: H01F27/32 ,  H01F27/24

CPC classification number: H01F27/32 ,  H01F27/24

Abstract: This application relates to a transformer and power equipment. The transformer includes: a low-voltage coil; a high-voltage coil; a magnetic core, where at least a part of the magnetic core is penetrated through the low-voltage coil and the high-voltage coil; an insulation member with a ground plane disposed on an outer surface of the insulation member; and a voltage uniform layer. The insulation member is wrapped around the high-voltage coil, so that the high-voltage coil is insulated from the low-voltage coil and the magnetic core, heat dissipation of the high-voltage coil, low-voltage coil and the magnetic core can be facilitated, and a service life of the transformer can be prolonged. A structure of the transformer is simplified, so that installation and maintenance of the low-voltage coil and the magnetic core can be facilitated, and processing and maintenance costs of the transformer can be reduced.

公开(公告)号：US20250149234A1

公开(公告)日：2025-05-08

申请号：US19014345

申请日：2025-01-09

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jinkun LIANG ,  Yanjun ZHI ,  Zhou ZHENG ,  Xiaoqing HU ,  Xiaming JING

IPC: H01F27/30 ,  H01F3/14 ,  H01F27/24 ,  H01F27/32 ,  H02M7/00 ,  H05K1/11 ,  H05K1/18

Abstract: A integrated inductor includes a first magnetic core, at least two second magnetic cores, and at least two windings. The first magnetic core includes a first surface and a second surface that are opposite to each other in a first direction. The second magnetic cores are disposed in the first direction on a side that is of the first surface and that is away from the second surface. The winding is wound around the first magnetic core and the second magnetic core. The second magnetic core includes a first part and a second part. Along the first direction and on a side that is of the first surface and that is opposite to the second surface, the first part is located between the winding and the first surface, and the second part is located on side that is of the winding and that is away from the first surface.

公开(公告)号：US20220392692A1

公开(公告)日：2022-12-08

申请号：US17830908

申请日：2022-06-02

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhuyong HUANG ,  Xiaofei ZHANG ,  Xiaoqing HU ,  Zelong ZHANG ,  Peng SHUAI

IPC: H01F27/28 ,  H01F27/24 ,  H01F41/06 ,  H01F41/00 ,  H01F27/36

Abstract: This application provides a dry-type transformer and a winding method thereof. The dry-type transformer includes a magnetic core, a first coil, a second coil, and a shielding component. The first coil is disposed around the exterior of the magnetic core, and the second coil is disposed around the exterior of the first coil. In a direction from the iron core to the second coil, the shielding component includes a first conducting layer, a second conducting layer, a third conducting layer, and a fourth conducting layer that are sequentially disposed at intervals, the first coil is disposed between the magnetic core and the first conducting layer, and the second coil is disposed between the second conducting layer and the third conducting layer.

公开(公告)号：US20220247214A1

公开(公告)日：2022-08-04

申请号：US17727355

申请日：2022-04-22

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Songnan YANG ,  Xiaoqing HU ,  Bing CAI

IPC: H02J50/10 ,  H01F38/14 ,  H02J7/02 ,  H04M1/02

Abstract: A wireless charging receiving apparatus of a mobile terminal. The wireless charging receiving apparatus is configured to be disposed inside the mobile terminal and close to a metal rear housing of the mobile terminal, and includes two interconnected coils. The two coils are located in a same plane and are connected in series, and winding directions of the two coils are opposite, so that directions of magnetic fluxes generated by the two coils on the metal rear housing are opposite, thereby resolving a problem of an eddy current on the metal rear housing of the mobile terminal such as a smartphone including a wireless charging system, and reducing a temperature of a metal body and reducing an energy loss without forming a hole or a seam on the metal rear housing.