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:
Jul. 15, 2025
Filed:
Aug. 17, 2023
Motor having a first rotor core containing magnets and a second rotor core made of magnetic material
Applicant:
Lg Electronics Inc., Seoul, KR;
Inventors:
Assignee:
LG ELECTRONICS INC., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/276 (2022.01); F04B 17/03 (2006.01); F04B 35/04 (2006.01); F04B 39/14 (2006.01); F04C 23/00 (2006.01); F04C 29/00 (2006.01); F04D 25/06 (2006.01); F04D 29/40 (2006.01); F25B 31/02 (2006.01); H02K 1/278 (2022.01); H02K 1/28 (2006.01); H02K 15/03 (2025.01); H02K 21/14 (2006.01);
U.S. Cl.
CPC ...
H02K 1/278 (2013.01); F04B 17/03 (2013.01); F04B 35/04 (2013.01); F04B 39/14 (2013.01); F04C 23/008 (2013.01); F04C 29/0085 (2013.01); F04D 25/06 (2013.01); F04D 29/403 (2013.01); H02K 1/276 (2013.01); H02K 1/28 (2013.01); H02K 15/03 (2013.01); H02K 21/14 (2013.01); F04C 2230/60 (2013.01); F25B 31/023 (2013.01); Y10T 29/49012 (2015.01);
Abstract
An electric motor and a compressor having an electric motor. The electric motor may include a stator, and a rotor provided with a rotational shaft, a rotor core coupled to the rotational shaft, and permanent magnets coupled to the rotor core. The rotor core may include a first core to which the permanent magnets may be coupled, and a second core made of a magnetic material and coupled to an end of the first core in an axial direction. The second core may have outer surfaces disposed inside of extension lines extending in the axial direction from inner surfaces of the permanent magnets.