Invention Grant
- Patent Title: Motor having optimized gaps between magnets for improving cogging torque
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Application No.: US16480450Application Date: 2018-01-15
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Publication No.: US11670975B2Publication Date: 2023-06-06
- Inventor: Seong Jin Lee , Bong Bae Kong
- Applicant: LG INNOTEK CO., LTD.
- Applicant Address: KR Seoul
- Assignee: LG INNOTEK CO., LTD.
- Current Assignee: LG INNOTEK CO., LTD.
- Current Assignee Address: KR Seoul
- Agency: Saliwanchik, Lloyd & Eisenschenk
- Priority: KR 20170011092 2017.01.24 KR 20170123555 2017.09.25
- International Application: PCT/KR2018/000681 2018.01.15
- International Announcement: WO2018/139791A 2018.08.02
- Date entered country: 2019-07-24
- Main IPC: H02K1/27
- IPC: H02K1/27 ; H02K1/28

Abstract:
The present invention provides a motor comprising: a rotating shaft; a rotor including a hole through which the rotating shaft is inserted; and a stator disposed outside the rotor, wherein the rotor comprises a rotor core surrounding the rotating shaft, and a plurality of magnets coupled to the rotor core, the magnets are disposed such that each two magnets, adjacent to each other in the axial direction of the rotating shaft, have a predetermined spacing therebetween, and the sum of the spacings is 0.04 to 0.07 times the axial length of the stator.
Public/Granted literature
- US20190386528A1 MOTOR Public/Granted day:2019-12-19
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