Title:
圧電マイクロブロア
Document Type and Number:
Japanese Patent JP5316644
Kind Code:
B2
Abstract:
[Object] To provide a piezoelectric micro-blower having low noise while maintaining the flow characteristic. [Solution] A piezoelectric micro-blower includes: a blower chamber 3 formed between a blower body 1 and a vibrating plate 20; a first wall portion 11 of the blower body provided in a location facing the vibrating plate across the blower chamber for vibrating with vibrations of the vibrating plate; a first opening 12 formed in the first wall portion; a second wall portion 51 provided on the opposite side of the first wall portion with respect to the blower chamber; a second opening 52 formed in a portion of the second wall portion which faces the first opening; and an inflow passage 6 formed between the first wall portion and the second wall portion. Each of the first opening 12 and the second opening 52 is composed of a plurality of holes, and each hole of the first opening and each hole of the second opening are provided in positions facing each other. Thus, noise can be reduced while the flow characteristic is maintained.
Inventors:
Masaaki Fujisaki
Atsuhiko Hirata
Kiyoshi Kurihara
Atsuhiko Hirata
Kiyoshi Kurihara
Application Number:
JP2011534215A
Publication Date:
October 16, 2013
Filing Date:
September 24, 2010
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
F04B45/047; F04B45/04
Domestic Patent References:
| JP2009103111A | 2009-05-14 | |||
| JP2005090510A | 2005-04-07 |
Foreign References:
| WO2008069266A1 | 2008-06-12 |
Attorney, Agent or Firm:
Hidetaka Tsutsui