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:
Jun. 21, 2022
Filed:
Mar. 19, 2020
Semiment Technologies (Shanghai) Co., Ltd., Shanghai, CN;
SEMIMENT TECHNOLOGIES (SHANGHAI) CO., LTD., Shanghai, CN;
Abstract
An outer rotor direct drive motor with a position encoder includes an outer rotor and a stator disposed in the outer rotor, wherein the stator includes: a stator chassis; a stator printed circuit board disposed on an side of the stator chassis, at least an excitation coil and a receiving coil being printed at the stator printed circuit board; and a stator winding disposed on the stator printed circuit board; wherein the outer rotor changes a coupling strength between the excitation coil and the receiving coil. The present invention has the following advantages: the installation method is flexible, and supports through-shaft installation without occupying too much space of the motor body; the sensor structure is stable, the rotor scale area and the induction coil are all printed on the printed circuit board, even in the case where the rotational speed is too fast, deformation or cracking will not be occurred.