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专利名称：Piezoelectric blower发明人：Nobuhira Tanaka申请号：US15231831申请日：20160809公开号：US09976547B2公开日：20180522
专利附图：
摘要：A piezoelectric blower includes a valve, a housing, a vibrating plate, and apiezoelectric element. The vibrating plate forms, together with the housing, a column-shaped blower chamber such that the blower chamber is interposed therebetween in athickness direction of the vibrating plate. The vibrating plate and the housing are formed
such that the blower chamber has a radius (a). The piezoelectric element causes thevibrating plate to undergo concentric bending vibration at a resonance frequency (f). Theradius (a) of the blower chamber and the resonance frequency (f) of the vibrating platesatisfy a relationship of 0.8×(kc)/(2π)≤af≤1.2×(kc)/(2π), where an acoustic velocity of gasthat passes through the blower chamber is (c) and a value that satisfies a relationship of aBessel function of a first kind of J(k)=0 is k.
申请人：Murata Manufacturing Co., Ltd.
地址：Kyoto JP
国籍：JP
代理机构：Pearne & Gordon LLP
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