Micro supersonic motor device using magnetic pressure |
Title： |
| Micro supersonic motor device using magnetic pressure |
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Application Number： |
200410080281 |
Application Date： |
2004/09/29 |
Announcement Date： |
2005/03/02 |
Pub. Date： |
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Publication Number： |
1588783 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H02N 2/10, H02N 2/12 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Xue Ping, Wu Jigang, Zhou Tieying |
Key Words： |
Micro, supersonic, motor device, magnetic pressure |
Abstract： |
This invention relates to mini-supersonic motor utilizing magnetic-pressure. It is composed of: an exciting ultrasonic vibration stator, a rotor, means for supplying pre-pressure between the stator and the rotor. Said stator comprises an exciting vibration piezoelectric ceramics elements and a matching block connected therewith, made of material which produces magnetic attraction with magnet. Said rotor comprises a non-magnetized substrate and a magnet connected there with. Said magnet supplies magnetic force enough for bearing the weight of the rotor, together with the pre-pressure between the stator and the rotor. This invention has eadvantages of: simple structure, small-size, easy to be manufactured. It can be used in medical, biological and micro-mechanical fields. |
Claim： |
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Priority： |
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PCT： |
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