US 12,293,870 B2
Method for manufacturing plastic article for magnetic element
Li Chen, Shanghai (CN); Jiayou Ma, Shanghai (CN); and Haijun Yang, Shanghai (CN)
Assigned to Delta Electronics (Shanghai) Co., Ltd., Shanghai (CN)
Filed by Delta Electronics (Shanghai) Co., Ltd., Shanghai (CN)
Filed on Nov. 8, 2021, as Appl. No. 17/453,867.
Claims priority of application No. 202011438345.7 (CN), filed on Dec. 7, 2020.
Prior Publication US 2022/0181077 A1, Jun. 9, 2022
Int. Cl. H01F 41/04 (2006.01); H01F 27/28 (2006.01); H01F 27/29 (2006.01); H01F 27/32 (2006.01)
CPC H01F 41/04 (2013.01) [H01F 27/2823 (2013.01); H01F 27/29 (2013.01); H01F 27/325 (2013.01); Y10T 29/4902 (2015.01)] 24 Claims
OG exemplary drawing
 
1. A method for manufacturing a plastic article for a magnetic element, the method comprising:
providing a first die core and a second die core opposite to each other along a first direction;
providing a third die core adjacent to the first die core and the second die core along a second direction, wherein the second direction is perpendicular to the first direction;
providing at least one hole insert for forming a pin-fixing hole for fixing a lead-pin of a winding of the magnetic element, wherein the at least one hole insert is detachably mounted to at least one of the first die core, the second die core, and the third die core; and
combining the first die core, the second die core, the third die core, and the at least one hole insert to form a mold with a cavity, wherein the cavity is injection molded to manufacture the plastic article.