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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. 发明授权

US08678787B2 Piezoelectric micro-blower 有权
标题翻译：压电式微型鼓风机
公开(公告)号：US08678787B2
公开(公告)日：2014-03-25
申请号：US12472833
申请日：2009-05-27
申请人： Atsuhiko Hirata , Gaku Kamitani , Hiroaki Wada , Midori Sunaga , Shungo Kanai
发明人： Atsuhiko Hirata , Gaku Kamitani , Hiroaki Wada , Midori Sunaga , Shungo Kanai
IPC分类号： F04B45/04
CPC分类号： F04B45/04 , F04B43/046 , F04B45/047 , F04B53/1077
摘要： A piezoelectric micro-blower capable of efficiently conveying compressive fluid without use of a check valve and ensuring a sufficient flow rate. The micro-blower has a blower body with a first wall and a second wall. Openings are formed in the respective walls and face a center of a diaphragm. An inflow path allowing the openings to communicate with the outside is formed between the walls. By applying a voltage to a piezoelectric element to cause the diaphragm to vibrate, a part of the first wall close to the first opening vibrates. Thus, gas can be drawn from the inflow path and discharged from the opening in the second wall.
摘要翻译：一种能够有效地输送压缩流体而不使用止回阀并确保足够的流量的压电微型鼓风机。微型鼓风机具有带有第一壁和第二壁的鼓风机主体。开口形成在相应的壁中并面向隔膜的中心。在壁之间形成允许开口与外部连通的流入路径。通过向压电元件施加电压以使隔膜振动，靠近第一开口的第一壁的一部分振动。因此，气体可以从流入路径抽出并从第二壁的开口排出。

3. 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。

4. 发明授权

US08314531B2 Piezoelectric actuator driver circuit 有权
标题翻译：压电致动器驱动电路
公开(公告)号：US08314531B2
公开(公告)日：2012-11-20
申请号：US12883291
申请日：2010-09-16
申请人： Midori Sunaga , Toshinari Tabata , Gaku Kamitani
发明人： Midori Sunaga , Toshinari Tabata , Gaku Kamitani
IPC分类号： H01L41/09 , H02N2/06
CPC分类号： H01L41/042
摘要： In a piezoelectric-actuator driving circuit for driving a piezoelectric actuator, an amplifier circuit amplifies a signal output from a feedback circuit and supplies the amplified signal to a non-inverting amplifier circuit and an inverting amplifier circuit. The non-inverting amplifier circuit amplifies the output voltage of the amplifier circuit with a predetermined gain and applies the amplified voltage to a first terminal of the piezoelectric actuator. The inverting amplifier circuit inverts and amplifies the output voltage of the amplifier circuit with the same gain as that of the non-inverting amplifier circuit and then applies the amplified voltage to a second terminal of the piezoelectric actuator through resistors. The feedback circuit amplifies a difference between voltages at respective ends of the resistor and supplies the amplified difference to the amplifier circuit.
摘要翻译：在用于驱动压电致动器的压电致动器驱动电路中，放大器电路放大从反馈电路输出的信号，并将放大的信号提供给非反相放大器电路和反相放大器电路。非反相放大器电路以预定的增益放大放大器电路的输出电压，并将放大的电压施加到压电致动器的第一端。反相放大器电路以与非反相放大器电路相同的增益来反相放大放大器电路的输出电压，然后通过电阻将放大的电压施加到压电致动器的第二端。反馈电路放大电阻器各端的电压差，并将放大的差值提供给放大器电路。

5. 发明申请

US20110068657A1 PIEZOELECTRIC ACTUATOR DRIVER CIRCUIT 有权
标题翻译：压电致动器驱动电路
公开(公告)号：US20110068657A1
公开(公告)日：2011-03-24
申请号：US12883291
申请日：2010-09-16
申请人： Midori SUNAGA , Toshinari TABATA , Gaku KAMITANI
发明人： Midori SUNAGA , Toshinari TABATA , Gaku KAMITANI
IPC分类号： H01L41/09
CPC分类号： H01L41/042
摘要： In a piezoelectric-actuator driving circuit for driving a piezoelectric actuator, an amplifier circuit amplifies a signal output from a feedback circuit and supplies the amplified signal to a non-inverting amplifier circuit and an inverting amplifier circuit. The non-inverting amplifier circuit amplifies the output voltage of the amplifier circuit with a predetermined gain and applies the amplified voltage to a first terminal of the piezoelectric actuator. The inverting amplifier circuit inverts and amplifies the output voltage of the amplifier circuit with the same gain as that of the non-inverting amplifier circuit and then applies the amplified voltage to a second terminal of the piezoelectric actuator through resistors. The feedback circuit amplifies a difference between voltages at respective ends of the resistor and supplies the amplified difference to the amplifier circuit.
摘要翻译：在用于驱动压电致动器的压电致动器驱动电路中，放大器电路放大从反馈电路输出的信号，并将放大的信号提供给非反相放大器电路和反相放大器电路。非反相放大器电路以预定的增益放大放大器电路的输出电压，并将放大的电压施加到压电致动器的第一端。反相放大器电路以与非反相放大器电路相同的增益来反相放大放大器电路的输出电压，然后通过电阻将放大的电压施加到压电致动器的第二端。反馈电路放大电阻器各端的电压差，并将放大的差值提供给放大器电路。

6. 发明申请

US20090232682A1 PIEZOELECTRIC MICRO-BLOWER 审中-公开
公开(公告)号：US20090232682A1
公开(公告)日：2009-09-17
申请号：US12472798
申请日：2009-05-27
申请人： Atsuhiko Hirata , Gaku Kamitani , Hiroaki Wada , Midori Sunaga , Shungo Kanai
发明人： Atsuhiko Hirata , Gaku Kamitani , Hiroaki Wada , Midori Sunaga , Shungo Kanai
IPC分类号： F04B43/04
CPC分类号： F04B45/04 , F04B43/046 , F04B45/047 , F04B53/1077
摘要： A piezoelectric micro-blower capable of efficiently conveying compressive fluid without use of a check valve and ensuring a sufficient flow rate. The micro-blower has a blower body with a first wall and a second wall. Openings are formed in the respective walls and face a center of a diaphragm. An inflow path allowing the openings to communicate with the outside is formed between the walls. By applying a voltage to a piezoelectric element to cause the diaphragm to vibrate, a part of the first wall close to the first opening vibrates. Thus, gas can be drawn from the inflow path and discharged from the opening in the second wall.

7. 发明申请

US20090232683A1 PIEZOELECTRIC MICRO-BLOWER 有权
标题翻译：压电微型鼓风机
公开(公告)号：US20090232683A1
公开(公告)日：2009-09-17
申请号：US12472833
申请日：2009-05-27
申请人： ATSUHIKO HIRATA , Gaku Kamitani , Hiroaki Wada , Midori Sunaga , Shungo Kanai
发明人： ATSUHIKO HIRATA , Gaku Kamitani , Hiroaki Wada , Midori Sunaga , Shungo Kanai
IPC分类号： F04B43/04
CPC分类号： F04B45/04 , F04B43/046 , F04B45/047 , F04B53/1077
摘要： A piezoelectric micro-blower capable of efficiently conveying compressive fluid without use of a check valve and ensuring a sufficient flow rate. The micro-blower has a blower body with a first wall and a second wall. Openings are formed in the respective walls and face a center of a diaphragm. An inflow path allowing the openings to communicate with the outside is formed between the walls. By applying a voltage to a piezoelectric element to cause the diaphragm to vibrate, a part of the first wall close to the first opening vibrates. Thus, gas can be drawn from the inflow path and discharged from the opening in the second wall.
摘要翻译：一种能够有效地输送压缩流体而不使用止回阀并确保足够的流量的压电微型鼓风机。微型鼓风机具有带有第一壁和第二壁的鼓风机主体。开口形成在相应的壁中并面向隔膜的中心。在壁之间形成允许开口与外部连通的流入路径。通过向压电元件施加电压以使隔膜振动，靠近第一开口的第一壁的一部分振动。因此，气体可以从流入路径抽出并从第二壁的开口排出。

8. 发明申请

US20090148318A1 Piezoelectric Pump 审中-公开
标题翻译：压电泵
公开(公告)号：US20090148318A1
公开(公告)日：2009-06-11
申请号：US12367084
申请日：2009-02-06
申请人： Gaku Kamitani , Midori Sunaga
发明人： Gaku Kamitani , Midori Sunaga
IPC分类号： F04B17/00
CPC分类号： F04B43/046 , F04B43/04 , F04B45/04
摘要： A piezoelectric pump having a first opening in a center portion of a pump body, and a second opening apart from the center. An outer peripheral portion of a metal diaphragm is fixed to the pump body, and a piezoelectric element having a size that covers the first opening and does not cover the second opening is bonded to a back center portion of the diaphragm. By applying a voltage near the resonance frequency to the piezoelectric element, a portion of the diaphragm opposing the first opening and a portion of the diaphragm opposing the second opening are bent in opposite directions so that fluid is drawn in from one of the first opening and the second opening and is discharged from the other opening. Such a piezoelectric pump can increase the discharging pressure, and can reliably discharge the fluid even under a condition where the pressure on the discharging side is high.
摘要翻译：一种压电泵，其具有在泵体的中心部分中的第一开口和与中心分开的第二开口。金属隔膜的外周部分固定在泵体上，并且具有覆盖第一开口并且不覆盖第二开口的尺寸的压电元件被接合到隔膜的后中心部分。通过将谐振频率附近的电压施加到压电元件，与第一开口相对的隔膜的一部分和与第二开口相对的一部分隔膜相反方向弯曲，从而使流体从第一开口和第二个开口并从另一个开口排出。这样的压电泵即使在排出侧的压力高的条件下也能够提高排出压力，并且能够可靠地排出流体。

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