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:
Sep. 05, 2023
Filed:
Dec. 18, 2019
Bmc Co., Ltd., Anseong-si, KR;
Ok Yun Kim, Seoul, KR;
Kea Ho Lee, Gwangju, KR;
Haeng Chul Sin, Gwangju, KR;
Gwan Seon Jeong, Gwangju, KR;
BMC CO., LTD., Anseong-si, KR;
Abstract
The hollow shaft motor according to the present invention comprises: a housinghaving a cylindrical shape; an upper covercoupled to an upper portion of the housing; a lower covercoupled to a lower portion of the housing; a stator assemblylocated in the housing; and a rotor assemblylocated in the stator assemblyto rotate, comprising a hollow shaft, a rotor corecoupled to the hollow shaft, and a plurality of magnetsarranged on an outer circumferential surface of the rotor coreat a certain interval, wherein the hollow shaftis manufactured with a plastic resin by an insert injection molding in the state where the rotor coreand the magnetare located in an insert injection mold.