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. 30, 2017
Filed:
Jun. 20, 2014
Samsung Electronics Co., Ltd., Suwon-si, KR;
Kyungpook National University Industry-academic Cooperation Foundation, Daegu, KR;
Won-ho Kim, Hwaseong-si, KR;
Seong-taek Lim, Suwon-si, KR;
Hong-soon Choi, Daegu, KR;
Jin-woo Cho, Seongnam-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Kyungpook National University Industry-Academic Cooperation Foundation, Daegu, KR;
Abstract
Exemplary embodiments disclose a rotor of an electric motor and an electric motor using the same. The rotor includes a core which includes a plurality of protrusion portions which are arranged along an outer circumference of the core and protrude radially to an outer portion of the core, and a plurality of concave portions interposed between the protrusion portions; a plurality of permanent magnets which are respectively disposed at the plurality of concave portions; and a plurality of pole pieces which are disposed at the plurality of concave portions and at outer sides of the plurality of permanent magnets. A length of each of the plurality of pole pieces in an axial direction is shorter than a length of each of the plurality of protrusion portions in the axial direction.