The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 20, 2026
Filed:
Aug. 15, 2024
Aac Acoustic Technologies (Shanghai) Co., Ltd., Shanghai, CN;
Beijing Xiaomi Robot Technology Co., Ltd., Beijing, CN;
Chunjiang Li, Shanghai, CN;
Yuntong Li, Shanghai, CN;
Bing Xie, Shanghai, CN;
Liang Jiang, Shanghai, CN;
Chuiyou Zhou, Shanghai, CN;
AAC Acoustic Technologies (Shanghai) Co., Ltd., Shanghai, CN;
Beijing Xiaomi Robot Technology Co., Ltd., Beijing, CN;
Abstract
The present invention provides a linear drive mechanism, including a housing, a front cover, a rear cover, a stator, and a rotor. The linear drive mechanism further includes a rolling lead screw, a first bearing, and a second bearing. The rolling lead screw includes a central lead screw and a lead screw nut. The rotor includes a hollow rotor body and an annular protrusion thereby driving the central lead screw to achieve linear telescopic motion. Compared with the prior art, the linear drive mechanism of the present invention has a good linear drive effect, which is convenient for reducing the length of the lead screw nut, saving costs, and saving installation space.