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1. 发明授权

US09368426B2 Piezoelectric fan and air cooling apparatus using the piezoelectric fan 有权
标题翻译：使用压电风扇的压电风扇和空气冷却装置
公开(公告)号：US09368426B2
公开(公告)日：2016-06-14
申请号：US13370341
申请日：2012-02-10
申请人： Masayoshi Tanida , Midori Sunaga , Hiroaki Wada
发明人： Masayoshi Tanida , Midori Sunaga , Hiroaki Wada
IPC分类号： H01L23/467 , F04D33/00 , H05K7/20
CPC分类号： H01L23/467 , F04D33/00 , H01L2924/0002 , H01L2924/3011 , H05K7/20172 , H01L2924/00
摘要： A piezoelectric fan includes a vibration plate one end of which in a length direction is supported in a fixed manner and the other end of which in the length direction is a free end; and piezoelectric elements, attached on at least one of front and back surfaces of the vibration plate. In an intermediate portion of the vibration plate in the length direction, a right-angle bent portion is provided, and a plurality of divided blades are defined by slits in an area of the vibration plate extending from the free end to a position located a predetermined distance from the bent portion toward the free end. The piezoelectric element is attached on the portion of the vibration plate between the fixed end and the bent portion. Hence, variations in resonant frequency among the blades are reduced and the blades are efficiently excited using a common piezoelectric element.
摘要翻译：压电风扇包括振动板，其一端在长度方向上以固定方式支撑，另一端在长度方向上为自由端; 以及安装在振动板的前表面和后表面中的至少一个上的压电元件。在振动板的长度方向的中间部分，设置有直角弯曲部，并且在振动板的从自由端延伸到位于规定的位置的位置的狭缝中形成有多个分割叶片从弯曲部分向自由端的距离。压电元件安装在固定端和弯曲部分之间的振动板的部分上。因此，叶片之间的谐振频率的变化减小，并且使用公共的压电元件有效地激励叶片。

2. 发明申请

US20130037245A1 PIEZOELECTRIC FAN AND AIR COOLING APPARATUS USING THE PIEZOELECTRIC FAN 有权
标题翻译：压电风扇和空气冷却装置使用压电扇
公开(公告)号：US20130037245A1
公开(公告)日：2013-02-14
申请号：US13370341
申请日：2012-02-10
申请人： Masayoshi TANIDA , Midori SUNAGA , Hiroaki WADA
发明人： Masayoshi TANIDA , Midori SUNAGA , Hiroaki WADA
IPC分类号： F28F13/12 , F04D33/00 , F04D27/00 , F04D25/06
CPC分类号： H01L23/467 , F04D33/00 , H01L2924/0002 , H01L2924/3011 , H05K7/20172 , H01L2924/00
摘要： A piezoelectric fan includes a vibration plate one end of which in a length direction is supported in a fixed manner and the other end of which in the length direction is a free end; and piezoelectric elements, attached on at least one of front and back surfaces of the vibration plate. In an intermediate portion of the vibration plate in the length direction, a right-angle bent portion is provided, and a plurality of divided blades are defined by slits in an area of the vibration plate extending from the free end to a position located a predetermined distance from the bent portion toward the free end. The piezoelectric element is attached on the portion of the vibration plate between the fixed end and the bent portion. Hence, variations in resonant frequency among the blades are reduced and the blades are efficiently excited using a common piezoelectric element.
摘要翻译：压电风扇包括振动板，其一端在长度方向上以固定方式支撑，另一端在长度方向上为自由端; 以及安装在振动板的前表面和后表面中的至少一个上的压电元件。在振动板的长度方向的中间部分，设置有直角弯曲部，并且在振动板的从自由端延伸到位于规定的位置的位置的狭缝中形成有多个分割叶片从弯曲部分向自由端的距离。压电元件安装在固定端和弯曲部分之间的振动板的部分上。因此，叶片之间的谐振频率的变化减小，并且使用公共的压电元件有效地激励叶片。

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