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:
Dec. 31, 2024
Filed:
Jun. 21, 2022
Hyundai Motor Company, Seoul, KR;
Kia Corporation, Seoul, KR;
Iucf-hyu (Industry-university Cooperation Foundation Hanyang University), Seoul, KR;
Jin Ho Choi, Suwon-Si, KR;
Jong Seok Lee, Suwon-Si, KR;
Sang Jin Park, Hwaseong-Si, KR;
Sung Woo Hwang, Seoul, KR;
Jae Hyun Kim, Seoul, KR;
Myung Seop Lim, Seoul, KR;
Hyundai Motor Company, Seoul, KR;
Kia Corporation, Seoul, KR;
IUCF-HYU (Industry-University Cooperation Foundation Hanyang University), Seoul, KR;
Abstract
A rotor cooling structure includes a turbine blower structure provided on first and second sides of a rotor for an induction motor; a refrigerant passage including a plurality of refrigerant passage inlet openings provided on a bottom surface of the turbine blower structure and a plurality of refrigerant passage outlet openings provided at an axial center of the rotor, which fluidically communicates with the refrigerant passage inlet openings and the refrigerant passage outlet openings and is provided along conductor bars of the rotor; and a plurality of micro groove patterns that hold the refrigerant passage outlet openings and are provided on both axial sides of the rotor on an external periphery of the rotor.