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Patent Searching and Data


Title:
VIBRATION GENERATOR
Document Type and Number:
Japanese Patent JP2017184444
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a compact vibration generator of high output even for low eigen frequency.SOLUTION: A vibration generator 1 includes an enclosure 2 having lateral direction X, longitudinal direction Y and height direction Z, a coil 3 fixed to the inside of the enclosure 2, a transducer 4 capable of relative movement to the coil 3 in the lateral direction X, and a pair of leaf springs 5, 5 spaced apart in the lateral direction X while sandwiching the transducer 4, and transmitting vibration of the enclosure 2 to the transducer 4. The transducer 4 includes multiple permanent magnets 6 spaced apart in the height direction Z while clamping the coil 3, and a yoke 7 placed to surround the coil 3. When the vibration generator 1 is fixed to a vibration object, vibration there is transmitted via the enclosure 2 to the pair of leaf springs 5, 5, and the transducer 4 is vibrated. Relative position of the permanent magnets 6 in the transducer 4 and the coil 3 fixed to the enclosure 2 changes thereby, and an electromotive force is generated in the coil 3 by electromagnetic induction.SELECTED DRAWING: Figure 1

Inventors:
ISHIKAWA NAOTO
KATAOKA YASUHIRO
SAITO MAKOTO
SHIBATA TSUTOMU
TAKAHASHI HIROYUKI
TAKAHASHI YUSUKE
Application Number:
JP2016067919A
Publication Date:
October 05, 2017
Filing Date:
March 30, 2016
Export Citation:
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Assignee:
ROYAL PARTS INC
International Classes:
H02K35/02
Domestic Patent References:
JP2015033266A2015-02-16
JP2003024871A2003-01-28
JP2003010783A2003-01-14
JPS59102180U1984-07-10
JPS60188612U1985-12-13
Foreign References:
WO2012137695A12012-10-11
Attorney, Agent or Firm:
Akihiko Saito
Hiroko Saito