Title:
BLOWER
Document Type and Number:
WIPO Patent Application WO/2016/027817
Kind Code:
A1
Abstract:
A piezoelectric blower (100) is provided with a housing (17), a vibrating body (45), and a piezoelectric element (42). The vibrating body (45) is provided with a vibration plate (41), a reinforcing plate (70), and a constraining plate (60). The vibrating body (45) and the housing (17) together constitute a column-shaped blower chamber (31) interposed therebetween in the thickness direction of the vibration plate (41). The vibrating body (45) has an outer peripheral region (145) adjacent to a range extending to an outer periphery of the blower chamber (31) from the outermost pressure vibration node (F) among pressure vibration nodes of the blower chamber (31) formed by bending vibration of the vibrating body (45), and a central region (146) positioned further inside than the outer peripheral region (145). The constraining plate (60), which constrains bending vibration of the outer peripheral region (145), is provided in the outer peripheral region (145).
Inventors:
SASAKI MASAHIRO (JP)
KURIHARA KIYOSHI (JP)
WADA HIROAKI (JP)
TANAKA NOBUHIRA (JP)
KURIHARA KIYOSHI (JP)
WADA HIROAKI (JP)
TANAKA NOBUHIRA (JP)
Application Number:
PCT/JP2015/073176
Publication Date:
February 25, 2016
Filing Date:
August 19, 2015
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
F04B45/047
Domestic Patent References:
| WO2008069264A1 | 2008-06-12 |
Foreign References:
| JP2013245649A | 2013-12-09 | |||
| JP2012528980A | 2012-11-15 | |||
| US20130236338A1 | 2013-09-12 |
Attorney, Agent or Firm:
Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
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