发明名称 |
PIEZOELECTRIC MICRO-BLOWER |
摘要 |
A blower body is provided with a first wall and a second wall, and openings are provided in the walls at positions facing the approximate center of a diaphragm. An inflow passage that allows the openings to communicate with the outside is arranged between the two walls. When the diaphragm is vibrated in response to a voltage applied to a piezoelectric element, the first wall vibrates near the opening and sucks in air from the inflow passage so that the air can be ejected from the opening. A plurality of branch passages which provide sound absorption are connected to an intermediate section of the inflow passage so as to prevent noise generated near the opening from leaking from an inlet.
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申请公布号 |
US2009232684(A1) |
申请公布日期 |
2009.09.17 |
申请号 |
US20090476332 |
申请日期 |
2009.06.02 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
HIRATA ATSUHIKO;KAMITANI GAKU |
分类号 |
F04B43/04 |
主分类号 |
F04B43/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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