Invention Grant
- Patent Title: Vibration power generator with elastic members fixed to a housing and coils poistioned between magnets
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Application No.: US15443412Application Date: 2017-02-27
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Publication No.: US10811949B2Publication Date: 2020-10-20
- Inventor: Atsuro Oonishi , Akihito Ogawa , Hiroshi Takahashi , Akihiko Enamito , Junichiro Ooga
- Applicant: Kabushiki Kaisha Toshiba
- Applicant Address: JP Minato-ku
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Minato-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@3b707a33
- Main IPC: H02K35/02
- IPC: H02K35/02 ; H02J1/00 ; H02K11/04

Abstract:
According to one embodiment, a vibration power generator includes a housing, an elastic member, a mover, and a coil. The elastic member is fixed to the housing. The mover is supported by the elastic member and able to vibrate in a first direction. The coil is positioned inside the mover. The mover includes a first magnet, a second magnet, a third magnet, and a first magnetic yoke. The second magnet is placed to be aligned with the first magnet in the first direction so as to repel each other. The third magnet is placed annularly with respect to the first magnet and the second magnet. The first magnetic yoke surrounds the first magnet, the second magnet and the third magnet. The coil is positioned between the third magnet, and both the first magnet and the second magnet.
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