ELECTRIC MACHINE HAVING IMPROVED COOLING STRUCTURE - KERI KOREA ELECTROTECHNOLOGY RES INST

Title:

ELECTRIC MACHINE HAVING IMPROVED COOLING STRUCTURE

Document Type and Number:

WIPO Patent Application WO/2024/010146

Kind Code:

A1

Abstract:

An electric machine having an improved cooling structure is disclosed. An electric machine according to the present invention comprises: a housing including a front surface cover, a body, and a rear surface cover which are coupled to form a receiving space therein; a rotational shaft rotatably installed at an axial center position of the housing; a rotor hub coupled to the rotational shaft; a rotor having a plurality of permanent magnets arranged in a circumferential direction on the disk-shaped surface thereof and coupled to the rotor hub to rotate together with the rotational shaft; and a stator having a plurality of coils arranged in a circumferential direction and fixedly installed in the housing to face the rotor in the axial direction, wherein the rotor includes an air hole for allowing air flow between the front side and the rear side along the axial direction.

Inventors:

LEE JI YOUNG (KR)
LEE JI HEON (KR)

Application Number:

PCT/KR2022/017482

Publication Date:

January 11, 2024

Filing Date:

November 08, 2022

Export Citation:

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Assignee:

KERI KOREA ELECTROTECHNOLOGY RES INST (KR)

International Classes:

H02K1/32; H02K1/2796; H02K1/30; H02K5/20; H02K9/06; H02K21/24

Foreign References:

JP2008245356A	2008-10-09
JP2022024534A	2022-02-09
KR20220040322A	2022-03-30
KR20180073768A	2018-07-03
JP2012518378A	2012-08-09