US 12,407,235 B2
Direct drive system
Weiling Shi, Shenzhen (CN); Yu Qin, Shenzhen (CN); Shun Guo, Shenzhen (CN); and Min Chen, Shenzhen (CN)
Assigned to AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Appl. No. 17/915,508
Filed by AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
PCT Filed Jul. 21, 2022, PCT No. PCT/CN2022/106916
§ 371(c)(1), (2) Date Sep. 29, 2022,
PCT Pub. No. WO2024/000699, PCT Pub. Date Jan. 4, 2024.
Claims priority of application No. 202221689497.9 (CN), filed on Jun. 30, 2022.
Prior Publication US 2025/0125703 A1, Apr. 17, 2025
Int. Cl. H02K 41/03 (2006.01)
CPC H02K 41/031 (2013.01) 8 Claims
OG exemplary drawing
 
1. A direct drive system, comprising:
a base, provided with a stator assembly; and
a slide, spaced from the base and provided with a rotor assembly, wherein
the rotor assembly comprises a first magnetic conductor and magnets arranged on the first magnetic conductor;
the stator assembly comprises at least one group of second magnetic conductors, and groups of windings spaced on the at least one group of second magnetic conductors, wherein the groups of windings are arranged opposite to the magnets, and a magnetic field generated by at least one group of the groups of windings covers at least one magnet of the magnets, so as to generate an electromagnetic thrust force with the magnet to drive the slide to move along a sliding direction;
wherein the stator assembly comprises groups of second magnetic conductors, and the groups of second magnetic conductors are spaced along the sliding direction, and are in one-to-one correspondence to the groups of windings;
wherein each group of the groups of second magnetic conductors is provided with auxiliary teeth on at least one of two ends along a length direction thereof.