US 11,942,821 B2
Injection molding stepping motor
Guangming Peng, Shanghai (CN); Wangxian Wu, Shanghai (CN); and Jianjun Gan, Shanghai (CN)
Assigned to SHANGHAI MOONS' ELECTRIC CO., LTD., Shanghai (CN)
Appl. No. 17/760,753
Filed by Shanghai Moons' Electric Co., Ltd., Shanghai (CN)
PCT Filed Jan. 22, 2021, PCT No. PCT/CN2021/073271
§ 371(c)(1), (2) Date Mar. 15, 2022,
PCT Pub. No. WO2021/208554, PCT Pub. Date Oct. 21, 2021.
Claims priority of application No. 202010290862.8 (CN), filed on Apr. 14, 2020.
Prior Publication US 2022/0337101 A1, Oct. 20, 2022
Int. Cl. H02K 37/04 (2006.01); H02K 1/14 (2006.01); H02K 3/52 (2006.01); H02K 5/08 (2006.01); H02K 15/095 (2006.01); H02K 15/12 (2006.01)
CPC H02K 1/148 (2013.01) [H02K 3/522 (2013.01); H02K 5/08 (2013.01); H02K 15/095 (2013.01); H02K 15/12 (2013.01); H02K 2213/03 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An injection molding stepping motor, comprising an injection molding stator assembly and a rotor assembly, wherein the injection molding stator assembly comprises a stator iron core, a front framework, a rear framework, a stator winding a front lining ring, a rear lining ring- and a mounting bracket, the stator winding is wound in a groove of the stator iron core into which the front framework and the rear framework are inserted, the front lining ring and the rear lining ring are mounted on two sides of the stator iron core, the stator iron core is fixed on the mounting bracket, and the front lining ring and the rear lining ring each adopts a structure which is formed by punching and laminating thin plates with different inner diameters.