US 12,080,465 B2
Transformer module and power module
Chaofeng Cai, Shanghai (CN); Jianhong Zeng, Shanghai (CN); Shouyu Hong, Shanghai (CN); Rui Wu, Shanghai (CN); Haoyi Ye, Shanghai (CN); Yiqing Ye, Shanghai (CN); and Xiaoni Xin, Shanghai (CN)
Assigned to Delta Electronics (Shanghai) Co., Ltd., Shanghai (CN)
Filed by Delta Electronics (Shanghai) Co., Ltd., Shanghai (CN)
Filed on Oct. 31, 2019, as Appl. No. 16/671,153.
Claims priority of application No. 201811301239.7 (CN), filed on Nov. 2, 2018; and application No. 201911042722.2 (CN), filed on Oct. 30, 2019.
Prior Publication US 2020/0161042 A1, May 21, 2020
Int. Cl. H01F 5/00 (2006.01); H01F 27/02 (2006.01); H01F 27/28 (2006.01); H01F 27/29 (2006.01); H01F 27/32 (2006.01); H01F 41/02 (2006.01)
CPC H01F 27/2847 (2013.01) [H01F 27/027 (2013.01); H01F 27/292 (2013.01); H01F 27/32 (2013.01); H01F 41/0233 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A transformer module, comprising:
a magnetic core, comprising at least one magnetic column being at least partially covered by a multi-layer carrier, wherein the multi-layer carrier comprises a plurality of horizontal foils and a plurality of connecting foils, each of the horizontal foils is located on a horizontal wiring layer, and the connecting foil is disposed to connect the horizontal foils located on different horizontal wiring layers; and
a first winding and a second winding surrounding the magnetic column, and the second winding being located outside the first winding;
wherein the first winding comprises at least two horizontal foils of the plurality of the horizontal foils and at least two connecting foils of the plurality of the connecting foils; the second winding comprises at least two horizontal foils of the plurality of the horizontal foils and at least two connecting foils of the plurality of the connecting foils;
a first end of the first winding is electrically connected to a first pin by a first connection piece; a second end of the first winding is electrically connected to a second pin by a second connection piece; and the first connection piece and the second connection piece pass through an insulating layer between the first winding and the second winding;
a first end of the second winding is electrically connected to a third pin; a second end of the second winding is electrically connected to a fourth pin;
the first pin, the second pin, the third pin and the fourth pin are disposed on at least one surface of the transformer module.