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21. 发明专利

JP2001235145A GAS-PROTECTING DEVICE 失效
公开(公告)号：JP2001235145A
公开(公告)日：2001-08-31
申请号：JP2000044474
申请日：2000-02-22
申请人： MATSUSHITA ELECTRIC IND CO LTD , YAZAKI CORP
发明人： FUJII YASUSHI , UEKI KOICHI , NIIMURA NORIO , MASUDA ISAO , YAMASHITA TOMIISA , HARADA TOSHIHIRO
IPC分类号： G01F1/00 , F23N5/18 , F23N5/24 , G01F1/66 , G01F3/22
摘要： PROBLEM TO BE SOLVED: To provide a gas-protecting device that detects the generation of re-liquefaction, obtains a stable flow-rate value, and can prevent a protection function from malfunctioning. SOLUTION: In the gas-protecting device having an ultrasonic measurement part consisting of an ultrasonic sensor 1 and a channel 2, a cutoff vale 3 for shielding gas when failure occurs, and a control circuit 7 for judging whether the used state of gas is normal or not, a re-liquefaction detection means 11 for detecting a re-liquefaction phenomenon where a gas pressure fluctuates irregularly, and a re-liquefaction time counting means 12 for averaging a measurement flow-rate value that fluctuates when re-liquefaction occurs are provided, thus detecting that re-liquefaction has occurred based on the pattern of a flow-rate measurement value that fluctuates when the re-liquefaction phenomenon occurs and obtaining a stabilized flow-rate value by averaging the flow-rate values.

22. 发明专利

JP2001165728A GAS METER 失效
公开(公告)号：JP2001165728A
公开(公告)日：2001-06-22
申请号：JP35074299
申请日：1999-12-09
申请人： YAZAKI CORP , MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMASHITA TOMIISA , MASUDA ISAO , HARADA TOSHIHIRO , NIIMURA NORIO , ASANO KAZUTAKA , UEKI KOICHI , FUJII YASUSHI
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide a gas meter enabling the integration of gas use quantity coinciding with actual consumption. SOLUTION: A gas meter consists of a propagation time measuring means A for measuring the signal propagation time in a gas flow channel, a flow rate operation means 17 for calculating a flow rate on the basis of the propagation time data from the propagation time measuring means A to integrate the calculated flow rate, a proparation time memory means 18 for preliminarily storing the signal propagation time of gas and a judge means 19 comparing the propagation time data from the propagation time measuring means A with the propagation time value from the propagation time memory means 18 to judge whether the propagation time data coincides with the propagation time value and the flow rate operation means 17 is operated so as to perform integration only when it is judged that the propagation time data coincides with the propagation time value by the judge means 19.

23. 发明专利

JPH08210631A SENSOR INPUT AND OUTPUT DEVICE FOR GAS SAFETY APPARATUS 失效
公开(公告)号：JPH08210631A
公开(公告)日：1996-08-20
申请号：JP1614195
申请日：1995-02-02
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TOKUNAMI TAKAO , FUJII YASUSHI
IPC分类号： G01F3/22 , F23N5/24
摘要： PURPOSE: To reduce a current consumption and to simultaneously stabilize the voltage of a supply power source for a long period by supplying power to meet the timing of detecting a pressure by a control circuit and so controlling as to increase the number of times of pressure detections by a threshold value discriminator. CONSTITUTION: A sensor input and output device holds the power source voltage of a pressure sensor 1 and a threshold value discriminator 3 supplied with power from a constant-voltage circuit 6 by the voltage stabilizing operation of the circuit 6 and the reference voltage of an A-D converter 2 constant to eliminate the influence of the voltage change of a battery by using for a long period and the voltage change at the time of loading of operating a shut-off valve. A control circuit 5 switches a power source switching circuit 4 to meet the timing for inputting a pressure value, intermittently operates the sensor 1, the discriminator 3 and the converter 2 to reduce the current consumption per time mean. The circuit 5 measures by the discriminator 3 having low current consumption in the case of monitoring the specific pressure such as high or lower voltage of high measuring frequency, and reduces the current consumption by decreasing the measuring frequency by the converter 2 having much current consumption.

24. 发明专利

JPH08184513A GAS PRESSURE MEASURING CIRCUIT FOR GAS SAFETY DEVICE 失效
公开(公告)号：JPH08184513A
公开(公告)日：1996-07-16
申请号：JP26395
申请日：1995-01-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUJII YASUSHI , ADACHI YOSHIYUKI , TOKUNAMI TAKAO , MATSUDA AKIRA
IPC分类号： G01L7/00 , H03M1/06
摘要： PURPOSE: To realize the reduction of the size of a gas pressure measuring circuit by correcting the data from a pressure sensor through an operational amplifier and operating a linear A/D converter with a different power supply thereby eliminating a level shifter. CONSTITUTION: A voltage is directly supplied to an A/D converter 7 from a power supply 6 and a level shifter is eliminated. When a pressure sensor 4 is operated with a power supply different from the power supply 6 for the A/D converter 7, the data is shifted and thereby it is corrected through a data correction circuit 8 comprising an operational amplifier 10 and resistors R1, R2. When the resistors R1, R2 are selected appropriately, the data can be converted correctly even if the A/D converter 7 is operated with the power supply 6.

25. 发明专利

JPH08148209A TERMINAL BLOCK 失效
公开(公告)号：JPH08148209A
公开(公告)日：1996-06-07
申请号：JP28342194
申请日：1994-11-17
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUJII YASUSHI
IPC分类号： H01R9/24 , H01R13/719
摘要： PURPOSE: To absorb noises in a terminal block and to reduce an area necessary for a noise absorbing circuit on a printed board so as to miniaturize the circuit forming noise preventing parts integrally with the terminal block. CONSTITUTION: Noise preventing parts 4 such as a barrister XNR, a capacitor C103 and the like are integrally formed by resins in the base board 2 of a terminal block and connected to a connection terminal 5 via a conductive plate 3. Thus, it is not necessary to provide any noise absorbing circuits on the printed board 2, incursion of noises into a circuit main body can be prevented and the electric circuit can be made small.

26. 发明专利

JPH06323461A ELECTRIC POWER SUPPLY CIRCUIT FOR GAS PROTECTIVE DEVICE 失效
公开(公告)号：JPH06323461A
公开(公告)日：1994-11-25
申请号：JP11268493
申请日：1993-05-14
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUJII YASUSHI , TOKUNAMI TAKAO , ADACHI YOSHIYUKI
IPC分类号： F16K31/06
摘要： PURPOSE:To hold the maximum rated voltage of a control circuit within a proper range by clipping voltage accumulated in a capacitor by a Zener diode when counter electromotive force generated by an inductor is heightned too much caused by pressure increasing operation to obtain operation voltage of a valve. CONSTITUTION:When an abnormal flow rate is detected by a control circuit 3 according to a gas flow rate measured by a measuring part 5 of a gas meter 6, an electric current is carried to a valve coil 8 by a driving circuit 7, and a cutoff valve 1 is closed. On the other hand, when a valve opening switch 9 is turned on, since voltage whose pressure is increased by a pressure increasing circuit 2 is given to the driving circuit 7, an electric current is carried in the inverse direction to a valve coil 8, the cutoff valve 1 is opened. In this case, a voltage correcting circuit 11 having an inductor L is interposed between the pressure increasing circuit 2 and electric power supply 4 so as to hold voltage of the control circuit 3 in the lowest operation voltage or more when the pressure increasing circuit 2 is operated. A Zener diode ZD is arranged additionally to restrain output voltage accumulated in a capacitor C of this circuit 11 in the maximum rated voltage or less.

27. 发明专利

JPH05206593A PRINTED CIRCUIT BOARD 失效
公开(公告)号：JPH05206593A
公开(公告)日：1993-08-13
申请号：JP1175892
申请日：1992-01-27
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUJII YASUSHI , ADACHI YOSHIYUKI , MATSUDA AKIRA , NAKAJIMA SHINOBU
IPC分类号： H05K1/02 , H05K3/30 , H05K3/34
摘要： PURPOSE:To enable a square QFP component, which is small and high in density, to be automatically and accurately mounted on an electronic circuit printed board used in various kinds of electric equipments solving a problem that the center coordinates of the QFP component are hard to measure. CONSTITUTION:A center mark 7 which indicates the center of a QFP component 4 is provided onto a printed board 1 as a pattern, and an IC mark 9 is provided onto the diagonal line 8 of the component which passes through the center, whereby the accurate coordinates of the enter of the QFP component 4 can be easily measured, and furthermore the center coordinates of the component 4 can be prevented from getting out of position or errors of measurement can be lessened, so that the QFP component 4 can be improved in mounting accuracy.

28. 发明专利

JP2007093206A Gas safety device 有权
标题翻译：气体安全装置
公开(公告)号：JP2007093206A
公开(公告)日：2007-04-12
申请号：JP2006337974
申请日：2006-12-15
申请人： Matsushita Electric Ind Co Ltd , Yazaki Corp , 松下電器産業株式会社 , 矢崎総業株式会社
发明人： FUJII YASUSHI , UEKI KOICHI , NIIMURA NORIO , MASUDA ISAO , YAMASHITA TOMIISA , HARADA TOSHIHIRO
IPC分类号： F23N5/18 , F23K5/00 , F23N5/24 , G01F1/66 , G01F3/22
摘要： PROBLEM TO BE SOLVED: To provide a gas safety device capable of detecting generation of reliquefaction when it is generated, capable of finding a stabilized flow rate value, and capable of preventing a malfunction of a safety function. SOLUTION: This gas safety device provided with an ultrasonic measuring part constituted of an ultrasonic sensor 1 and a flow passage 2, a shut-off valve 3 for shutting off gas when abnormality is generated, and a control circuit 7 for determining the propriety of normality in a gas using condition, is provided with a reliquefaction detecting means 11 for detecting a reliquefaction phenomenon with gas pressure fluctuated irregularly, a reliquefaction time measuring means 12 for averaging the fluctuated measured flow rate values when the reliquefaction is generated, and a temperature sensor 10 for measuring an ambient temperature, and the control circuit 7 is provided with a reliquefaction learning means 16 for learning a temperature change when the reliquefaction is generated, and for judging the risk of generating the reliquefaction, in advance thereto. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在生成时检测再液化产生的气体安全装置，能够找到稳定的流量值，并且能够防止安全功能的故障。解决方案：该气体安全装置设置有由超声波传感器1和流路2构成的超声波测量部，用于在产生异常时关闭气体的截止阀3，以及用于确定在气体使用条件下正常性的适当性设置有用于检测气体压力不规则地波动的再液化现象的再液化检测装置11，用于平均产生再液化时的波动测量流量值的再结合时间测量装置12，用于测量环境温度的温度传感器10，并且控制电路7设置有用于在产生再液化时学习温度变化并且用于判断产生再液化的风险的再液化学习装置16。版权所有（C）2007，JPO＆INPIT

29. 发明专利

JP2007064792A Ultrasonic flow measuring instrument 有权
标题翻译：超声波流量测量仪
公开(公告)号：JP2007064792A
公开(公告)日：2007-03-15
申请号：JP2005251163
申请日：2005-08-31
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： FUJII YASUSHI , MURAKAMI HIROKUNI , SAKAGUCHI YUKIO
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flow measuring instrument capable of measuring a plurality of kinds of fluids different in sonic velocities at the same precision.
SOLUTION: An ultrasonic propagation time is measured between at least a pair of ultrasonic transceivers 2, 3 arranged with a space in upstream and downstream sides of a fluid passage 1, by a measuring part 8. A flow velocity and/or a flow rate of the fluid is computed by a computing means 10, based on a measured result therein. The measuring part 8 is provided with a plurality of oscillation circuits different in frequencies, and measures the fluids different in the sonic velocities at the same precision, by providing a resolution switching means 11 for conducting switching to the oscillation circuit used for measuring the propagation time in accordance with the sonic velocity of the measuring fluid.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供能够以相同的精度测量声波速度不同的多种流体的超声波流量测量仪器。解决方案：通过测量部分8在至少一对布置有流体通道1的上游和下游侧的空间的超声波收发器2,3之间测量超声波传播时间。流速和/或基于其中的测量结果，计算装置10计算流体的流速。测量部分8设置有多个频率不同的振荡电路，并且通过提供用于切换到用于测量传播时间的振荡电路的分辨率切换装置11，以相同的精度测量声速不同的流体根据测量流体的声速。版权所有（C）2007，JPO＆INPIT

30. 发明专利

JP2004028580A Ultrasonic flowmeter and method of measuring ultrasonic flow rate 有权
公开(公告)号：JP2004028580A
公开(公告)日：2004-01-29
申请号：JP2002142657
申请日：2002-05-17
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： HARAO NORIYUKI , FUJII YASUSHI
IPC分类号： G01F1/00 , F17D3/18 , G01F1/66 , G01F3/22
摘要： PROBLEM TO BE SOLVED: To miniaturize an ultrasonic flowmeter as well as to widen its dynamic range.
SOLUTION: The ultrasonic flowmeter is provided with a 2nd flow passage 3 bypassing from an upstream point to a downstream point of a switching valve 5 provided in a 1st passage 1. When the flow rate in the 1st flow passage 1 becomes lower than a predetermined value, the switching valve 5 is closed so as to measure the flow rate in the 2nd flow passage 3. The range of the flow rate is switched depending on the large/small amount of the flow rate.
COPYRIGHT: (C)2004,JPO

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