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:
May. 16, 2023
Filed:
Dec. 02, 2020
Nantong University, Nantong, CN;
Liang Hua, Nantong, CN;
Ling Jiang, Nantong, CN;
Juping Gu, Nantong, CN;
Ping Lu, Nantong, CN;
Yuxuan Ge, Nantong, CN;
Yisheng Huang, Nantong, CN;
Chunkai Yan, Nantong, CN;
Wenbo Su, Nantong, CN;
NANTONG UNIVERSITY, Nantong, CN;
Abstract
A composite motor having high-precision positioning, comprising: a housing (), a rough positioning assembly, a hollow output shaft (), a fine positioning assembly, a power switching apparatus and a controller (). A stepper motor () in the rough positioning assembly is responsible for rough positioning of the composite motor, an annular travelling wave ultrasonic motor in the fine positioning assembly is responsible for tail end fine positioning of the composite motor, and the controller () implements power output switching between the annular travelling wave ultrasonic motor and the stepper motor (). The composite motor effectively solves the problem that annular travelling wave ultrasonic motors which operate continuously for a long time have a short service life, and ensures high-precision positioning while also extending motor service life.