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公开(公告)号：US20060158064A1
公开(公告)日：2006-07-20
申请号：US11291739
申请日：2005-12-01
IPC分类号： H01L41/08
CPC分类号： H04R17/00 , H04R1/2842 , H04R1/2849 , H04R2499/11
摘要： An enclosure of a cellular phone is formed with a plurality of sound releasing holes. The inside of a portion where the sound releasing holes are provided defines an air chamber formed with a receiving portion for mounting a piezoelectric sounding element. The piezoelectric sounding element is of bimorph structure formed by adhering piezoelectric elements on both surfaces of a diaphragm, and serves as a speaker by hermetically fixing a peripheral edge of the diaphragm to the receiving portion. Acoustic characteristics of such a piezoelectric sounding body relates to the total sum S of side surface areas of the sound releasing holes. Therefore, by setting the total sum to a value from 1.5 mm to 60 mm2, variations in resonant frequency and lowering of the sound pressure are prevented, and hence the required acoustic characteristics can be secured while realizing reduction of the thickness of the wall of the enclosure.
摘要翻译： 蜂窝电话的外壳形成有多个声音释放孔。 设置有声音释放孔的部分的内部限定了形成有用于安装压电发声元件的接收部分的空气室。 压电探测元件是通过将隔膜的两个表面上的压电元件粘合而形成的双压电晶片结构，并且通过将隔膜的周边缘气密地固定到接收部分而用作扬声器。 这种压电发声体的声学特性与声音释放孔的侧面积的总和S有关。 因此，通过将总和设定为1.5mm至60mm 2的值，可以防止谐振频率的变化和声压的降低，从而可以确保所需的声学特性，同时实现减小 的外壳壁厚。
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公开(公告)号：US07447324B2
公开(公告)日：2008-11-04
申请号：US11390620
申请日：2006-03-28
IPC分类号： B06B1/06 , H01L41/083
CPC分类号： B06B1/0611 , B06B1/0618
摘要： Electrode layers 22A-22C, 24A-24C are formed on both main surfaces of each of piezoelectric layers 20A, 20B. Voltages of different polarities are respectively applied to the electrode layers next to each other on the same main surface and to the electrode layers opposing to each other via the piezoelectric layer. Projection forms 30, 32 are formed in respective edges of the second electrode layers 22B, 24B, each of which extends into the opposite area. Through-holes are formed in the piezoelectric layer 20A, 20B, in positions off a division line 38. The electrode layers 22A-22C are connected together by the through-holes 26A, 26B and the projection form 30, to have an equal potential. Those are lead from the diaphragm to the outside, thus reducing the overall thickness.
摘要翻译： 在压电层20A，20B的两个主表面上形成电极层22A-22C，24A-24C。不同极性的电压分别在相同的主表面上彼此相邻地施加到电极层 以及经由压电层彼此相对的电极层。 投影形式30,32形成在第二电极层22B，24B的相应边缘中，每个边缘延伸到相对的区域中。 在分割线38的位置处，在压电层20A，20B中形成通孔。 电极层22A-22C通过通孔26A，26B和突出形式30连接在一起，以具有相等的电位。 那些从隔膜引导到外部，从而减小了整体厚度。
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公开(公告)号：US20060221770A1
公开(公告)日：2006-10-05
申请号：US11390620
申请日：2006-03-28
IPC分类号： B06B1/06
CPC分类号： B06B1/0611 , B06B1/0618
摘要： Electrode layers 22A-22C, 24A-24C are formed on both main surfaces of each of piezoelectric layers 20A, 20B. Voltages of different polarities are respectively applied to the electrode layers next to each other on the same main surface and to the electrode layers opposing to each other via the piezoelectric layer. Projection forms 30, 32 are formed in respective edges of the second electrode layers 22B, 24B facing to each other, each of which extends into the opposite area. Through-holes are formed in the piezoelectric layer 20A, 20B, in positions off a division line 38. The electrode layers 22A-22C are connected together by the through-holes 26A, 26B and the projection form 30, to have an equal potential. Those are lead from the diaphragm to the outside, thus reducing the overall thickness. This can reduce the thickness of a piezoelectric sounding body thus obtained and achieves lead reliability improvement, manufacturing process simplification and material diminishing.
摘要翻译： 在压电层20A，20B的两个主表面上形成电极层22A-22C，24A-24C。不同极性的电压分别在相同的主表面上彼此相邻地施加到电极层 以及经由压电层彼此相对的电极层。 在彼此面对的第二电极层22B，24B的各自的边缘中形成有各自延伸到相对区域中的投影形式30,32。 在分割线38的位置处，在压电层20A，20B中形成通孔。 电极层22A-22C通过通孔26A，26B和突出形式30连接在一起，以具有相等的电位。 那些从隔膜引导到外部，从而减小了整体厚度。 这样可以减小由此获得的压电发声体的厚度，并且可以提高铅的可靠性，制造工艺简化和材料减少。
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公开(公告)号：US20080130921A1
公开(公告)日：2008-06-05
申请号：US11773339
申请日：2007-07-03
IPC分类号： H04R17/00
CPC分类号： H04R1/08 , H04R17/00 , H04R2499/11
摘要： A piezoelectric electroacoustic transducer capable of uniformly adhering the periphery of a piezoelectric diaphragm to an annular holding part of the holding body over the whole circumference is provided. The piezoelectric electroacoustic transducer includes a pair of piezoelectric elements having external electrodes on one main surface, a piezoelectric diaphragm provided between the piezoelectric elements and adhered to both main surfaces of an insulation substrate and a holding body having an annular holding part along the periphery of the edge of the piezoelectric diaphragm. The diaphragm is provided with a aperture conductor in an inner area enclosed by the annular holding part to interconnect the connection electrodes on both main surfaces of the diaphragm. A pair of extracted parts respectively connected to the connection electrodes is formed on the periphery of the edge of the other main surface. Accordingly, the periphery of the edge of the diaphragm can be uniformly adhered to the annular holding part of the holding body over the whole circumference with no necessity of providing an extracted part of the connection electrode on an adhesion surface between the periphery of the edge of the diaphragm and the holding part.
摘要翻译： 提供一种压电电声换能器，其能够在整个圆周上均匀地将压电振动膜的周边附着到保持体的环状保持部。 压电电声换能器包括一对在一个主表面上具有外部电极的压电元件，压电元件设置在压电元件之间并粘合到绝缘基板的两个主表面上的压电膜，以及具有环形保持部分的保持体， 压电隔膜的边缘。 隔膜在由环形保持部包围的内部区域中设置有孔导体，以将隔膜的两个主表面上的连接电极互连。 分别连接到连接电极的一对提取部分形成在另一个主表面的边缘的周边上。 因此，隔膜的边缘的周边可以在整个圆周上均匀地粘附到保持体的环形保持部分，而不需要在连接电极的边缘的周边之间的粘合表面上提供连接电极的提取部分 隔膜和保持部分。
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5.发明授权公开(公告)号：US06843123B2
公开(公告)日：2005-01-18
申请号：US10622457
申请日：2003-07-21
申请人： Yasukazu Tokuhisa , Makoto Tanaka
发明人： Yasukazu Tokuhisa , Makoto Tanaka
CPC分类号： G01F1/696 , G01F1/6847
摘要： A flow rate sensor capable of increasing a range where fluid flow rate can be detected with a high accuracy. The flow rate sensor includes: a sensor pipe; a resistor group; a reference resistor group; a constant current source; a first differential circuit; and a flow rate decision unit. The flow rate sensor further includes: a dummy sensor pipe where no fluid is flown; a dummy resistor group changing their resistance value according to the temperature and attached in the longitudinal direction, a dummy reference resistor group, a for-dummy constant current source, switch means for selectively connecting the resistor group with the dummy resistor group in series, a flow rate range increasing differential circuit for detecting a potential difference, and a third flow rate decision unit for obtaining the flow rate of the fluid flowing in the fluid passage according to the potential difference.
摘要翻译： 能够提高能够高精度地检测流体流量的范围的流量传感器。 流量传感器包括：传感器管; 一个电阻组; 参考电阻组; 恒流源; 第一差分电路; 和流量决定单元。 流量传感器还包括：没有流体流动的虚拟传感器管; 虚拟电阻器组根据温度改变其电阻值并沿纵向安装，伪参考电阻器组，伪虚拟恒流源，用于选择性地将电阻器组与虚拟电阻器组串联连接的开关装置， 流量范围增加用于检测电位差的差分电路;以及第三流量决定单元，用于根据电位差获得在流体通道中流动的流体的流量。
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公开(公告)号：US08112182B2
公开(公告)日：2012-02-07
申请号：US10572046
申请日：2005-02-03
IPC分类号： G05D11/00
CPC分类号： G01F1/6847 , G01F1/6842 , G05D7/0635 , Y10T137/0379
摘要： A mass flow rate-controlling apparatus including a mass flow rate-detecting mechanism 8 a flow rate-controlling valve mechanism 10 and a mechanism 44 for controlling the flow rate-controlling valve mechanism based on a flow rate-setting signal S0 input from outside and a flow rate signal S1, the flow path being provided with a pressure-detecting mechanism 42 for detecting the pressure of the fluid to output the detected pressure signal, so that the controlling mechanism selectively switches a first control mode for controlling the mass flow rate based on the flow rate signal and the flow rate-setting signal without using the detected pressure signal, and a second control mode for controlling the mass flow rate based on the detected pressure signal, the flow rate signal and the flow rate-setting signal, based on a pressure variation obtained from the detected pressure signal.
摘要翻译： 一种质量流量控制装置，包括质量流量检测机构8，流量控制阀机构10和用于基于从外部输入的流量设定信号S0来控制流量控制阀机构的机构44，以及 流量信号S1，流路设置有用于检测流体的压力以输出检测到的压力信号的压力检测机构42，使得控制机构选择性地切换用于控制质量流量的第一控制模式 在不使用检测到的压力信号的情况下对流量信号和流量设定信号进行控制;以及第二控制模式，用于基于检测到的压力信号，流量信号和流量设定信号来控制质量流量 基于从检测到的压力信号获得的压力变化。
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公开(公告)号：US6062246A
公开(公告)日：2000-05-16
申请号：US53780
申请日：1998-04-02
CPC分类号： G05D7/0635
摘要： A mass flow controller having a shut off valve in a flow path body as an integral part. The mass flow controller minimize a dead space between the shut off valve and a mass flow control valve to reduce the amount of entrapped gas therein, thereby avoiding occurrence of overshoot in the initiation of the next mass flow control operation. In another aspect, a bypass passage is provided in the flow path body. The bypass passage bypasses a sensor flow path, a bypass flow path and a mass flow control valve which increase a flow resistance, and therefore, a large amount of purge gas can be passed through the bypass passage in a short time. In still another aspect, a sealing surface of a valve seat is made into coplanar with the top surface of the flow path body, thereby making the sealing surface and the top surface of the body possible to be simultaneously subjected to lapping finish. This enhances the parallel relation between the sealing surface and the top surface of the body and makes it easy to align the axis of an actuator with the axes of other parts.
摘要翻译： 一种质量流量控制器，其具有作为一体部分的流路主体中的截止阀。 质量流量控制器最小化截止阀和质量流量控制阀之间的死区，以减少其中的夹带气体的量，从而避免在下一个质量流量控制操作的启动中发生过冲。 在另一方面，在流路主体中设置有旁路通路。 旁通通道绕过传感器流路，旁通流路和质量流量控制阀，其增加流动阻力，因此可以在短时间内大量吹扫气体通过旁通通道。 另一方面，将阀座的密封面与流路主体的上表面共面，由此能够使密封面和主体的上表面同时进行研磨。 这增强了密封表面和主体顶表面之间的平行关系，并且使得致动器的轴线与其他部件的轴线对准变得容易。
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公开(公告)号：US20070198131A1
公开(公告)日：2007-08-23
申请号：US10572046
申请日：2005-02-03
IPC分类号： G05D7/00
CPC分类号： G01F1/6847 , G01F1/6842 , G05D7/0635 , Y10T137/0379
摘要： A mass flow rate-controlling apparatus comprising a mass flow rate-detecting means 8 for detecting a mass flow rate to output a flow rate signal, and a flow rate-controlling valve mechanism 10 for changing a valve-opening degree in response to a valve-operating signal to control the mass flow rate in a flow path 6 for a fluid, and further comprising a means 44 for controlling the flow rate-controlling valve mechanism based on a flow rate-setting signal S0 input from outside and a flow rate signal S1, the flow path being provided with a pressure-detecting means 42 for detecting the pressure of the fluid to output the detected pressure signal, so that the controlling means selectively switches a first control mode for controlling the mass flow rate based on the flow rate signal and the flow rate-setting signal without using the detected pressure signal, and a second control mode for controlling the mass flow rate based on the detected pressure signal, the flow rate signal and the flow rate-setting signal, based on a pressure variation obtained from the detected pressure signal.
摘要翻译： 一种质量流量控制装置，包括用于检测质量流量以输出流量信号的质量流量检测装置8和用于响应于阀门改变阀开度的流量控制阀机构10 控制用于流体的流路6中的质量流量，并且还包括用于基于从外部输入的流量设定信号S 0来控制流量控制阀机构的装置44和流量 信号S 1，流路设置有用于检测流体的压力以输出检测到的压力信号的压力检测装置42，使得控制装置选择性地切换用于基于控制装置42控制质量流量的第一控制模式 流量信号和流量设定信号，而不使用检测到的压力信号;以及第二控制模式，用于基于检测到的压力信号，流量信号和流量来控制质量流量 基于从检测到的压力信号获得的压力变化的速率设定信号。
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