US 11,854,735 B2
Winding structure for inductor and method for manufacturing the same, winding inductor and method for manufacturing the same
Qiang Su, Guangdong (CN); Youyun Li, Guangdong (CN); Shengcheng Xia, Guangdong (CN); and Xinshu Yu, Guangdong (CN)
Assigned to Shenzhen Sunlord Electronics Co., Ltd., Shenzhen (CN)
Filed by Shenzhen Sunlord Electronics Co., Ltd., Guangdong (CN)
Filed on Mar. 14, 2021, as Appl. No. 17/200,887.
Application 17/200,887 is a continuation of application No. PCT/CN2020/129321, filed on Nov. 17, 2020.
Prior Publication US 2022/0157515 A1, May 19, 2022
Int. Cl. H01F 27/29 (2006.01); H01F 27/30 (2006.01); H01F 41/061 (2016.01); H01F 27/24 (2006.01); H01F 27/28 (2006.01)
CPC H01F 27/306 (2013.01) [H01F 27/24 (2013.01); H01F 27/2823 (2013.01); H01F 27/29 (2013.01); H01F 41/061 (2016.01)] 10 Claims
OG exemplary drawing
 
1. A winding structure for an inductor, comprising:
a magnetic core and a coil;
wherein the magnetic core comprises a center column, a flange, a first wire-hanging part, a second wire-hanging part, a third wire-hanging part, a fourth wire-hanging part, a first boss and a second boss, wherein the center column is connected at a top surface of the flange and extends upwards, the first boss is disposed in the middle of a first side of the flange and extends outwards, the second boss is disposed in the middle of a second side of the flange and extends outwards, and the first side is opposite the second side; two side surfaces of the first side of the flange on two sides of the first boss are used as the first wire-hanging part and the second wire-hanging part, respectively, and two side surfaces of the second side of the flange on two sides of the second boss are used as the third wire-hanging part and the fourth wire-hanging part, respectively;
a transition surface of the first wire-hanging part to a bottom surface of the flange is a first chamfered surface, a transition surface of the second wire-hanging part to a bottom surface of the flange is a second chamfered surface, a transition surface of the third wire-hanging part to a bottom surface of the flange is a third chamfered surface, and a transition surface of the fourth wire-hanging part to a bottom surface of the flange is a fourth chamfered surface;
the coil comprises a wire wrap, a first wire tail and a second wire tail extending from two ends of the wire wrap, respectively, and the wire wrap is sleeved on the center column;
a first section of the first wire tail is attached to the first wire-hanging part and the first chamfered surface, a second section of the first wire tail is attached to the bottom surface of the flange, a third section of the first wire tail is attached to the third wire-hanging part and the third chamfered surface, and a fourth section of the first wire tail is buckled to the top surface of the flange; a first section of the second wire tail is attached to the second wire-hanging part and the second chamfered surface, a second section of the second wire tail is attached to the bottom surface of the flange, a third section of the second wire tail is attached to the fourth wire-hanging part and the fourth chamfered surface, and a fourth section of the second wire tail is buckled to the top surface of the flange; the second section of the first wire tail and the second section of the second wire tail are parallel.