Invention Grant
- Patent Title: Motor including plurality of rotor parts
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Application No.: US15781995Application Date: 2016-12-16
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Publication No.: US10714992B2Publication Date: 2020-07-14
- Inventor: Koji Mikami , Yoji Yamada , Akihisa Hattori , Seiya Yokoyama
- Applicant: DENSO CORPORATION
- Applicant Address: JP Aichi-ken
- Assignee: DENSO CORPORATION
- Current Assignee: DENSO CORPORATION
- Current Assignee Address: JP Aichi-ken
- Agency: Kilpatrick Townsend & Stockton LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2bb56c45
- International Application: PCT/JP2016/087621 WO 20161216
- International Announcement: WO2017/110688 WO 20170629
- Main IPC: H02K1/27
- IPC: H02K1/27 ; H02K1/18 ; H02K21/16 ; H02K1/22 ; H02K21/14 ; H02K3/28

Abstract:
A motor includes a stator including windings and a rotor. The windings include a first winding and a second winding connected in series. The rotor includes a plurality of rotor parts arranged in an axial direction. Each of the rotor parts includes a first magnet pole unit including a permanent magnet and a second magnet pole unit opposing the second winding at a rotational position of the rotor where the first magnet unit opposes the first winding. The second magnet pole unit applies a weaker magnetic force to the stator than the first magnet pole unit. The rotor parts each include an equal number of magnet poles. The first magnet pole units of the rotor parts are located at positions deviated from one another in a circumferential direction. The second magnet pole units of the rotor parts are located at positions deviated from one another in the circumferential direction.
Public/Granted literature
- US20180367000A1 MOTOR Public/Granted day:2018-12-20
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