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    • 12. 发明申请
    • Fuel level gauge for use in automobile
    • 用于汽车的燃油液位计
    • US20070085532A1
    • 2007-04-19
    • US11546917
    • 2006-10-13
    • Isao MiyagawaMikio MuramatsuAtsushi Yasuda
    • Isao MiyagawaMikio MuramatsuAtsushi Yasuda
    • G01B7/30
    • G01F23/38
    • A fuel level gauge is advantageously used in a fuel tank of an automobile. The fuel level gauge installed in a fuel tank includes a float floating on the fuel surface, a rotatable member supported by a stationary member and a detector such as a Hall element. The float is connected to the rotatable member through an arm member, and the rotatable member rotates according to positions of the float. Rotational positions of the rotatable member are detected by the detector. The arm member is electrically connected through a conducting member to a ground terminal to ground electrostatic charges that are generated by abrasion between the float and the fuel and accumulated in the arm member. The conducting member slidably connects the arm member to the ground member not to disturb smooth rotation of the rotatable member. Accuracy of the fuel level detection is maintained by grounding the electrostatic charges.
    • 燃料液位计有利地用在汽车的燃料箱中。 安装在燃料箱中的燃料液位计包括浮在燃料表面上的浮子,由固定构件支撑的可旋转构件和诸如霍尔元件的检测器。 浮子通过臂构件连接到可旋转构件,并且可旋转构件根据浮子的位置旋转。 可旋转构件的旋转位置由检测器检测。 臂构件通过导电构件电连接到接地端子,以将由浮子和燃料之间的磨损产生的并累积在臂构件中的静电电荷接地。 导电构件将臂构件滑动地连接到接地构件,不会妨碍可旋转构件的平滑旋转。 通过接地静电电荷来维持燃油液位检测的精度。
    • 13. 发明申请
    • Liquid level detecting apparatus
    • 液面检测装置
    • US20060288775A1
    • 2006-12-28
    • US11513364
    • 2006-08-31
    • Isao MiyagawaAtsushi Yasuda
    • Isao MiyagawaAtsushi Yasuda
    • G01F23/296
    • G01F23/2962G01N2291/02836
    • A guide pipe is formed from a metal material, and its internal cross section has a circular shape whose diametric dimension gradually becomes smaller with a distance from an ultrasonic sensor. That is, the guide pipe is formed so that a route for transmitting an ultrasonic wave generated from the ultrasonic sensor may be tapered from this ultrasonic sensor toward a reflector plate. Thus, the acoustic pressure level of the ultrasonic wave which enters the reflector plate can be made higher than a value in a prior-art liquid level detecting apparatus. Accordingly, the energy of the ultrasonic wave generated from the ultrasonic sensor can be utilized for liquid level detection at a high efficiency, so that a fuel liquid level detecting apparatus capable of accurate liquid level detection can be provided.
    • 引导管由金属材料形成,其内部截面呈圆形,其直径尺寸随着与超声波传感器的距离逐渐变小。 也就是说,引导管形成为使得从超声波传感器产生的超声波的发送路径可以从该超声波传感器向反射板逐渐变细。 因此,可以使进入反射板的超声波的声压级高于现有技术的液面检测装置的值。 因此,能够将从超声波传感器生成的超声波的能量高效地利用于液位检测,能够提供能够进行精确的液位检测的燃料液位检测装置。
    • 15. 发明授权
    • Liquid level detection apparatus
    • 液位检测装置
    • US08763456B2
    • 2014-07-01
    • US13461189
    • 2012-05-01
    • Atsushi YasudaIsao Miyagawa
    • Atsushi YasudaIsao Miyagawa
    • G01F23/38
    • G01F23/38
    • A liquid level detection apparatus includes a rotation member axially supported by a fixed member. The rotation member includes the following. A contact portion press contacts an end surface making connection between both side surfaces of a magnet member. A pair of elastic deformation portions are protruded from the contact portion; each elastic deformation portion engages with a side surface of the magnet member in an elastically deformed state resulting from press to the magnet. A pair of pawl portions are protruded respectively from the elastic deformation portions while enabling the magnet member to be sandwiched between the contact portion and the pawl portions. A pair of plastic deformation portions are protruded from the elastic deformation portions, respectively; each of the plastic deformation portions engages with the side surface of the magnet member in a plastically deformed state resulting from the press to the magnet.
    • 液面检测装置包括由固定部件轴向支撑的旋转部件。 旋转构件包括以下部件。 接触部分压接接触端部表面,从而在磁体件的两个侧表面之间形成连接。 一对弹性变形部从接触部突出; 每个弹性变形部分由于压到磁体而导致弹性变形状态与磁体部件的侧表面接合。 一对棘爪部分分别从弹性变形部分突出,同时使得磁体构件能够夹在接触部分和棘爪部分之间。 一对塑性变形部分分别从弹性变形部分突出; 每个塑性变形部分都以由磁体的压力导致的塑性变形状态与磁体部件的侧表面接合。
    • 16. 发明申请
    • FLUID LEVEL MEASUREMENT APPARATUS AND SYSTEM
    • 流体液位测量装置和系统
    • US20120304761A1
    • 2012-12-06
    • US13483621
    • 2012-05-30
    • Isao MiyagawaHiroshi Hashimoto
    • Isao MiyagawaHiroshi Hashimoto
    • G01F23/26
    • G01F23/36
    • A fluid level measurement system includes a fluid level sensor, a voltage application circuit, and a measurement circuit. The fluid level sensor includes a rotating member rotating depending on a fluid level, a supporting member for rotatably supporting the rotating member, and a variable resistor having a resistance depending on a rotation angle of the rotating member. The application circuit applies an AC voltage to the resistor. The measurement circuit measures the fluid level based on the resistance. A resistive portion of the resistor is held by the supporting member and extends around the rotation center of the rotating member. A movable portion of the resistor is held by the rotating member and has a contact surface made of mainly gold. When the rotating member rotates, the movable portion moves along the resistive portion with the contact surface in contact with the resistive portion.
    • 液位测量系统包括液位传感器,电压施加电路和测量电路。 液面传感器包括根据流体水平旋转的旋转构件,用于可旋转地支撑旋转构件的支撑构件,以及具有取决于旋转构件的旋转角度的阻力的可变电阻器。 应用电路向电阻施加交流电压。 测量电路基于电阻测量液位。 电阻器的电阻部分由支撑构件保持并围绕旋转构件的旋转中心延伸。 电阻器的可移动部分由旋转构件保持,并且具有主要由金制成的接触表面。 当旋转构件旋转时,可动部分沿着电阻部分移动,接触表面与电阻部分接触。
    • 17. 发明申请
    • LIQUID LEVEL DETECTION APPARATUS
    • 液位检测装置
    • US20120285240A1
    • 2012-11-15
    • US13461189
    • 2012-05-01
    • Atsushi YasudaIsao Miyagawa
    • Atsushi YasudaIsao Miyagawa
    • G01F23/38
    • G01F23/38
    • A liquid level detection apparatus includes a rotation member axially supported by a fixed member. The rotation member includes the following. A contact portion press contacts an end surface making connection between both side surfaces of a magnet member. A pair of elastic deformation portions are protruded from the contact portion; each elastic deformation portion engages with a side surface of the magnet member in an elastically deformed state resulting from press to the magnet. A pair of pawl portions are protruded respectively from the elastic deformation portions while enabling the magnet member to be sandwiched between the contact portion and the pawl portions. A pair of plastic deformation portions are protruded from the elastic deformation portions, respectively; each of the plastic deformation portions engages with the side surface of the magnet member in a plastically deformed state resulting from the press to the magnet.
    • 液面检测装置包括由固定部件轴向支撑的旋转部件。 旋转构件包括以下部件。 接触部分压接接触端部表面,从而在磁体件的两个侧表面之间形成连接。 一对弹性变形部从接触部突出; 每个弹性变形部分由于压到磁体而导致弹性变形状态与磁体部件的侧表面接合。 一对棘爪部分分别从弹性变形部分突出,同时使得磁体构件能够夹在接触部分和棘爪部分之间。 一对塑性变形部分分别从弹性变形部分突出; 每个塑性变形部分都以由磁体的压力导致的塑性变形状态与磁体部件的侧表面接合。
    • 18. 发明授权
    • Liquid level detecting device
    • 液位检测装置
    • US08028575B2
    • 2011-10-04
    • US12071442
    • 2008-02-21
    • Isao MiyagawaAtsushi Yasuda
    • Isao MiyagawaAtsushi Yasuda
    • G01F23/00
    • G01F23/38
    • A liquid level detecting device includes a rotative member having a bearing portion and a stationary member having an axis portion. The axis portion is fitted to a hole of the bearing portion, thereby rotatably holding the rotative member. The rotative member is integrated with a displacement member. The stationary member is fixed with a detection unit to detect a displacement of the displacement member. The rotative member is connected with a float via an arm. The axis portion has an inserted portion inserted in the bearing portion and in contact with the bearing portion via a contact portion. The contact portion has a total area that is less than an area of an outer circumferential periphery of the inserted portion.
    • 液面检测装置包括具有轴承部分和具有轴部分的固定部件的旋转部件。 轴部装配到轴承部分的孔中,从而可旋转地保持旋转部件。 旋转构件与位移构件一体化。 固定构件用检测单元固定以检测位移构件的位移。 旋转构件通过臂与浮子连接。 轴部具有插入在轴承部分中并且经由接触部分与轴承部分接触的插入部分。 接触部的总面积小于插入部的外周的面积。
    • 20. 发明授权
    • Liquid level detecting device and method of manufacturing same
    • 液面检测装置及其制造方法
    • US07703322B2
    • 2010-04-27
    • US11584787
    • 2006-10-23
    • Atsushi YasudaIsao Miyagawa
    • Atsushi YasudaIsao Miyagawa
    • G01F23/00
    • G01F23/38
    • A liquid level detecting device for detecting liquid level contained in a tank includes a float and an arm that moves in a prescribed manner when liquid level changes, a permanent magnet for forming a magnetic field, a hall IC for generating an electric signal in response to the motion of the magnetic field, a rotary member linked with the arm and the permanent magnet for moving the magnetic field relative to the hall IC as the float and the arm move, a terminal member for connecting the hall IC to an outside control circuit; and a mold body including a resinous holder for holding the hall IC and the terminal member. The resinous holder includes a sheath for insulating the hall IC from heat and mechanical stress generated when the mold body is formed.
    • 用于检测容纳在罐中的液位的液面检测装置包括浮子和液面变化时以规定的方式移动的臂,用于形成磁场的永久磁铁,响应于 用于将霍尔IC连接到外部控制电路的端子构件,用于将霍尔IC连接到外部控制电路的端子构件,与该臂连动的旋转构件和永磁体,用于相对于霍尔IC移动磁场作为浮动和臂移动; 以及包括用于保持霍尔IC和端子构件的树脂保持器的模体。 树脂保持器包括用于使霍尔IC绝缘的护套和形成模具体时产生的热和机械应力。