SOUND GENERATING DEVICE AND ELECTRONIC EQUIPMENT

Title:

SOUND GENERATING DEVICE AND ELECTRONIC EQUIPMENT

Document Type and Number:

WIPO Patent Application WO/2016/080387

Kind Code:

A1

Abstract:

A piece of electronic equipment 10 comprises: a primary surface member 20 that is used as a vibration plate; a casing 30 that supports the primary surface member 20; and a sound generating device 50 that is attached to the casing 30 and that generates sound by vibrating the main surface member 20. The sound generating device 50 has a piezoelectric plate 60 and a protection member 90. The piezoelectric plate 60 is longer in a first horizontal direction, and has an upper surface, a lower surface, and a plurality of side surfaces. The protection member 90 comprises: a support part 92 that supports the piezoelectric plate 60 while also covering the lower surface of the piezoelectric plate 60; a protection part 93 that is provided on the support part 92 and that covers at least one of the side surfaces of the piezoelectric plate 60; and an attachment part 94 that is attached to the casing 30.

Inventors:

YAMAZAKI OSAMU (JP)
IKEZAWA NORIAKI (JP)
ABE YOSHIYUKI (JP)
SHUTA KOICHI (JP)
KUMASAKA KATSUNORI (JP)
KATSUNO MASAFUMI (JP)

Application Number:

PCT/JP2015/082251

Publication Date:

May 26, 2016

Filing Date:

November 17, 2015

Export Citation:

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Assignee:

NEC TOKIN CORP (JP)

International Classes:

H04R7/04; H04R17/00

Foreign References:

JP2011129971A	2011-06-30
JP2008125005A	2008-05-29
JP2014033380A	2014-02-20

Other References: