US 12,316,169 B2
Linear driving apparatus
Lin Qian, Shenzhen (CN); Weiling Shi, Shenzhen (CN); Min Chen, Shenzhen (CN); Shun Guo, Shenzhen (CN); Xueyuan Zhu, Shenzhen (CN); and Yu Huang, Shenzhen (CN)
Assigned to AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Appl. No. 17/919,537
Filed by AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
PCT Filed Jul. 28, 2022, PCT No. PCT/CN2022/108446
§ 371(c)(1), (2) Date Oct. 18, 2022,
PCT Pub. No. WO2024/000713, PCT Pub. Date Jan. 4, 2024.
Claims priority of application No. 202210772232.3 (CN), filed on Jun. 30, 2022.
Prior Publication US 2025/0125690 A1, Apr. 17, 2025
Int. Cl. H02K 11/21 (2016.01); H02K 3/28 (2006.01); H02K 11/33 (2016.01); H02K 41/03 (2006.01)
CPC H02K 11/21 (2016.01) [H02K 3/28 (2013.01); H02K 11/33 (2016.01); H02K 41/031 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A linear driving apparatus, comprising:
a plurality of stators successively spliced into a one-piece;
a plurality of rotors slidably arranged on the plurality of stators;
a driving component configured to drive the plurality of rotors to slide along an extension direction of the plurality of stators;
a plurality of first position feedback units, wherein each of the plurality of rotors is provided with one of the plurality of first position feedback units, and one of the plurality of first position feedback units is provided with a marking signal; and
a plurality of second position feedback units arranged on the plurality of stators and spaced apart from each other, wherein the plurality of second position feedback units is arranged corresponding to the plurality of first position feedback units, and is configured to read position information of the plurality of first position feedback units and read the marking signal,
wherein when any one of the plurality of second position feedback units reads the marking signal, the second position feedback unit is configured to confirm a position of the rotor corresponding thereto, use the confirmed position of the rotor as a starting point, and sort all rotors according to an order of positions of other rotors in the linear driving apparatus, so as to complete numbering of all rotors.