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Title:
ROTOR FOR MAGNETIC GEAR, MANUFACTURING METHOD THEREFOR, MAGNETIC GEAR COMPRISING SAME, AND PROPULSION MODULE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2021/177803
Kind Code:
A1
Abstract:
The present invention relates to a magnetic gear and, more specifically, to a rotor for a magnetic gear, a manufacturing method therefor, a magnetic gear comprising same, and a propulsion module comprising same. The present invention provides a magnetic gear comprising: an inner magnetic flux part (100) having a plurality of permanent magnets (130) coupled to the outer circumferential surface thereof; an outer magnetic flux part (300) which is coaxially disposed with the inner magnetic flux part (100) and has a plurality of permanent magnets (330) coupled to the inner circumferential surface thereof; and a pole piece unit (200) disposed between the outer circumferential surface of the inner magnetic flux part (100) and the inner circumferential surface of the outer magnetic flux part (300) to regulate magnetic flux, wherein: at least one of the inner magnetic flux part (100) and the outer magnetic flux part (300) comprises a support body (110, 310) extending in the axial direction and a permanent magnet module (120, 320) fixedly coupled to the support body (110, 310) and sequentially installed in the axial direction; and the permanent magnet module (120, 320) comprises a fixation ring (140, 340) to which the plurality of permanent magnets (130, 330) are fixedly coupled around a rotation axis along the circumferential direction.

Inventors:
HONG DO KWAN (KR)
Application Number:
PCT/KR2021/002852
Publication Date:
September 10, 2021
Filing Date:
March 08, 2021
Export Citation:
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Assignee:
KERI KOREA ELECTROTECHNOLOGY RES INST (KR)
International Classes:
H02K49/10; B63H5/10; B63H21/17; B64D27/24; B64D35/04
Foreign References:
KR101819103B12018-01-16
JP2012163206A2012-08-30
JP2013249858A2013-12-12
JP2016019365A2016-02-01
Other References:
KIM, SE-YEONG, LEE TAE-WOO, HONG DO-GWAN: "Non-contact magnetic gear multiphysics analysis for low gear ratio counter-rotation propellers", PROCEEDINGS OF THE 2019 FALL CONFERENCE OF THE ELECTRICAL EQUIPMENT AND ENERGY CONVERSION SYSTEM SECTOR OF THE KOREAN INSTITUTE OF ELECTRICAL ENGINEERS. KIEE; OCTOBER 17 - 19, 2019,, vol. 23, 19 October 2019 (2019-10-19), Korea, pages 209 - 210, XP009530053
Attorney, Agent or Firm:
B&IP-JOOWON PATENT AND LAW FIRM (KR)
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