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Patent Searching and Data


Title:
VIBRATION TRANSMISSION STRUCTURE, AND PIEZOELECTRIC SPEAKER
Document Type and Number:
WIPO Patent Application WO/2017/029768
Kind Code:
A1
Abstract:
Provided are: a vibration transmission structure (300) capable of achieving excellent vibration characteristics even in the cases where a piezoelectric element (1) is used; and a piezoelectric speaker (400). According to one embodiment of the present invention, the vibration transmission structure (300) is provided with: a board-like piezoelectric element (1) both ends of which are supported; a diaphragm 3 that is disposed facing the piezoelectric element (1); a plurality of spacers (5) that connect the piezoelectric element (1) and the diaphragm (3) to each other; and an elastic body (24) that is provided at a peripheral portion (3a) of the diaphragm (3).

Inventors:
ABE, Yoshiyuki (7-1 Koriyama 6-chome, Taihaku-ku, Sendai-sh, Miyagi 10, 〒9828510, JP)
KATSUNO, Masafumi (7-1 Koriyama 6-chome, Taihaku-ku, Sendai-sh, Miyagi 10, 〒9828510, JP)
SHUTA, Koichi (7-1 Koriyama 6-chome, Taihaku-ku, Sendai-sh, Miyagi 10, 〒9828510, JP)
YAMAZAKI, Osamu (7-1 Koriyama 6-chome, Taihaku-ku, Sendai-sh, Miyagi 10, 〒9828510, JP)
IKEZAWA, Noriaki (7-1 Koriyama 6-chome, Taihaku-ku, Sendai-sh, Miyagi 10, 〒9828510, JP)
KUMASAKA, Katsunori (7-1 Koriyama 6-chome, Taihaku-ku, Sendai-sh, Miyagi 10, 〒9828510, JP)
Application Number:
JP2016/001530
Publication Date:
February 23, 2017
Filing Date:
March 17, 2016
Export Citation:
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Assignee:
NEC TOKIN CORPORATION (7-1 Koriyama 6-chome, Taihaku-ku Sendai-sh, Miyagi 10, 〒9828510, JP)
International Classes:
H04R17/00; H04R1/30; H04R7/04
Domestic Patent References:
WO2012090383A12012-07-05
Foreign References:
JPS6160597U1986-04-23
JP2015033109A2015-02-16
JPS58153493A1983-09-12
Other References:
See also references of EP 3264796A4
Attorney, Agent or Firm:
IEIRI, Takeshi (HIBIKI IP Law Firm, Asahi Bldg. 5th Floor 3-33-8, Tsuruya-cho, Kanagawa-ku, Yokohama-sh, Kanagawa 35, 〒2210835, JP)
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