发明申请
- 专利标题: DRIVING DEVICE
- 专利标题(中): 驱动装置
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申请号: US12296321申请日: 2007-04-10
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公开(公告)号: US20090160372A1公开(公告)日: 2009-06-25
- 发明人: Ryuichi Yoshida , Hirohisa Sueyoshi , Satoshi Shinke , Shinichi Yamamoto
- 申请人: Ryuichi Yoshida , Hirohisa Sueyoshi , Satoshi Shinke , Shinichi Yamamoto
- 申请人地址: JP HACHIOJI-SHI TOKYO
- 专利权人: KONICA MINOLTA OPTO, INC.
- 当前专利权人: KONICA MINOLTA OPTO, INC.
- 当前专利权人地址: JP HACHIOJI-SHI TOKYO
- 优先权: JP2006-108275 20060411
- 国际申请: PCT/JP2007/057873 WO 20070410
- 主分类号: H02K41/035
- IPC分类号: H02K41/035
摘要:
In order to provide a driving device that is capable of eliminating sticking of a movable member due to nonuse, the driving device includes a drive shaft that reciprocates in axial directions with expansion and contraction of an electromechanical transducer element, a movable member that frictionally engages with the drive shaft, and a drive circuit that inputs drive voltage into the electromechanical transducer element, the drive circuit outputting drive operation pattern voltage having a frequency (fd1′) lower than a resonance frequency (fr) of the electromechanical transducer element and lower than a frequency (fd1) that maximizes moving velocity of the movable member and sticking elimination pattern voltage having a frequency lower than the frequency (fd1′) of the drive operation pattern voltage and in vicinity of a frequency (fd2) that maximizes thrust acting on the movable member.
公开/授权文献
- US08026688B2 Driving device 公开/授权日:2011-09-27