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：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.