US 12,266,467 B2
Surface-mounted transformer and processing method thereof
Deping Zeng, Guangdong (CN); Hui Lin, Guangdong (CN); Xiaohu Tang, Guangdong (CN); Qunsheng Zhou, Guangdong (CN); Wei Xie, Guangdong (CN); and Yongming He, Guangdong (CN)
Assigned to Shenzhen Sunlord Electronics Co., Ltd., Guangdong (CN)
Filed by Shenzhen Sunlord Electronics Co., Ltd., Guangdong (CN)
Filed on Nov. 16, 2021, as Appl. No. 17/527,189.
Application 17/527,189 is a continuation of application No. PCT/CN2021/098914, filed on Jun. 8, 2021.
Claims priority of application No. 202011381405.6 (CN), filed on Nov. 30, 2020.
Prior Publication US 2022/0172884 A1, Jun. 2, 2022
Int. Cl. H01F 27/28 (2006.01); H01F 1/34 (2006.01); H01F 27/255 (2006.01); H01F 27/29 (2006.01); H01F 41/02 (2006.01); H01F 41/04 (2006.01)
CPC H01F 27/29 (2013.01) [H01F 1/344 (2013.01); H01F 27/255 (2013.01); H01F 41/0246 (2013.01); H01F 41/04 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A surface-mounted transformer, comprising an adhesive layer and a winding product, wherein the winding product is disposed inside the adhesive layer; the winding product comprises an I-shaped magnetic core and a coil wound on a middle pillar of the I-shaped magnetic core;
leading-out ends of the coil are connected to electrodes; the electrodes are exposed on the surface of the adhesive layer;
the adhesive layer is obtained through compression molding forming of a magnetic molding material, wherein the magnetic molding material is made by mixing of Ni—Zn ferrite powder and a thermosetting epoxy molding material, wherein in a mixture of the Ni—Zn ferrite powder and the thermosetting epoxy molding material, a weight percentage of the Ni—Zn ferrite powder is 20%-90%; and
the electrodes are Ag—Ni—Sn 3-layer structural electrodes, the number of the electrodes is 8, and the electrodes are connected to free ends of the 4 windings respectively; and the leading-out ends of the coil connected to the electrodes are led out in a right-angle manner.