Title:
LINEAR VIBRATION ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2019/151232
Kind Code:
A1
Abstract:
[Problem] To provide a linear vibration actuator that can vibrate a movable element at a certain degree of width of the vibration frequency. [Solution] A linear vibration actuator 1 comprises: a movable element 12 that is housed in a case 11 and has a plurality of magnets 122 linearly arranged in a vibration direction D11; a guide part 13 which holds the movable element 12 so that the movable element can move in a straight line; a flat plate-shaped coil 14 wound in a flat plate shape in at least one plane 151 of a pair of planes 151 sandwiching the movable element 12; a pair of first biasing magnets 161 respectively disposed on both ends of the movable element 12 in the vibration direction D11; and a pair of second biasing magnets 162 that are disposed inside the case 11 so as to respectively face the pair of first biasing magnets 161, and that have the same polarities as the respective polarities of the first pair of biasing magnets 161 so as to bias the movable element 12 in the vibration direction D11.
Inventors:
NAKAMURA KAZUYA (JP)
NAKAMURA MOTOICHI (JP)
OKAMOTO CHIHIRO (JP)
KOGAWA TAKESHI (JP)
NAKAMURA MOTOICHI (JP)
OKAMOTO CHIHIRO (JP)
KOGAWA TAKESHI (JP)
Application Number:
PCT/JP2019/002943
Publication Date:
August 08, 2019
Filing Date:
January 29, 2019
Export Citation:
Assignee:
ADAMANT NAMIKI PREC JEWEL CO LTD (JP)
International Classes:
B06B1/04; H02K33/16
Foreign References:
| JP2017029971A | 2017-02-09 | |||
| JP2017136592A | 2017-08-10 | |||
| JPH10146564A | 1998-06-02 | |||
| JP2002254030A | 2002-09-10 | |||
| JP2017175838A | 2017-09-28 | |||
| JP2016131916A | 2016-07-25 | |||
| JP2010029744A | 2010-02-12 |
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