公开(公告)号：JP2009109371A

公开(公告)日：2009-05-21

申请号：JP2007282740

申请日：2007-10-31

Applicant: Denso Corp ,  株式会社デンソー

Inventor： MIYAGAWA ISAO ,  YASUDA ATSUSHI

IPC: G01F23/36

Abstract: PROBLEM TO BE SOLVED: To provide a liquid level detecting apparatus whose size and cost can be reduced by reducing frictional forces at the bearing portions of an arm member.
SOLUTION: By arranging a shaft B being the rotary shaft of the arm member 6 and a shaft A being the rotary shaft of an arm 3 in parallel with each other while separating them by a predetermined distance D in their radial direction, the shaft portion 6b of the arm member 6, and its bearing portion 2d and bearing portion 14a can be arranged at positions separate from a boss portion 2a being a bearing for the arm 3, and the magnitude of frictional forces between the shaft portion 6b and both bearing portions 2d, 14a can be reduced by thinning the thickness of the shaft portion 6b to a necessary minimum. Moreover, by arranging the shaft B being the rotary shaft of the arm member 6, in other words, the shaft portion 6b of the arm member 6, inside a sector range F being the rotation range of the arm 3 and on the more resistance element 5 side than the shaft A, the length of the arm member 6, i.e., the length of an arm portion 6a can be shortened, and consequently the weight of the arm member 6 can be reduced.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种通过减小臂构件的支承部分处的摩擦力来降低其尺寸和成本的液位检测装置。 解决方案：通过将轴B作为臂构件6的旋转轴并将作为臂3的旋转轴的轴A彼此平行地布置，同时在其径向方向上分开预定距离D， 臂构件6的轴部6b，其轴承部2d和轴承部14a可以布置在与作为用于臂3的轴承的凸台部分2a分离的位置处，并且轴部6b和两者之间的摩擦力的大小 可以通过将轴部6b的厚度减薄到必要的最小值来减小轴承部分2d，14a。 此外，通过布置作为臂构件6的旋转轴的轴B，换句话说，臂构件6的轴部6b在作为臂3的旋转范围的扇区范围F内，并且在更多的阻力元件 5侧，臂构件6的长度，即臂部6a的长度可以缩短，从而可以减小臂构件6的重量。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2007147582A

公开(公告)日：2007-06-14

申请号：JP2006014185

申请日：2006-01-23

Applicant: Denso Corp ,  株式会社デンソー

Inventor： MIYAGAWA ISAO ,  YASUDA ATSUSHI

IPC: G01F23/00 ,  G01F23/30 ,  G01F23/36 ,  G01F23/38

Abstract: PROBLEM TO BE SOLVED: To provide a structure capable of precisely attaching the liquid level detector onto the tank. SOLUTION: The structure includes the liquid level detector 1, and an attaching member 30 attached with the liquid level detector 1. The liquid level detector 1 is provided with sliding parts 54 in width-directional both ends of the liquid level detector 1, and the attaching member 30 is provided with a guide part 31 having guide grooves 31a for sliding the sliding parts 54. The guide part 31 has the guide grooves 31a to restrict the sliding part 54 in a thickness direction of the liquid level detector 1. The sliding part 54 and the guide grooves 31a have a prescribed length L along a sliding direction. The liquid level detector 1 and the attaching member 30 have positioning means 31, 57 for determining an attaching position in the sliding direction, in the width-directional both ends. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供能够将液位检测器精确地附接到罐上的结构。 解决方案：该结构包括液位检测器1和安装有液面检测器1的安装构件30.液位检测器1在液位检测器1的宽度方向两端设有滑动部件54 并且安装构件30设置有引导部31，引导部31具有用于滑动滑动部54的引导槽31a。引导部31具有引导槽31a，以在液面检测器1的厚度方向上限制滑动部54。 滑动部54和引导槽31a沿着滑动方向具有规定的长度L. 液面检测器1和安装构件30具有用于确定沿宽度方向两端的滑动方向上的安装位置的定位装置31,57。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2005140545A

公开(公告)日：2005-06-02

申请号：JP2003374685

申请日：2003-11-04

Applicant: Denso Corp ,  株式会社デンソー

Inventor： MIYAGAWA ISAO ,  YASUDA ATSUSHI

IPC: G01F23/28 ,  F02M37/00

Abstract: PROBLEM TO BE SOLVED: To provide a liquid level detector for vehicles that can precisely detect a liquid level, by enhancing the energy of ultrasonic waves propagated in a liquid at the outer periphery side of the oscillation surface of an ultrasonic oscillation element by an easy means. SOLUTION: A thin section 42, whose thickness is thin is provided annularly and concentrically with an emission surface 31 of an ultrasonic sensor 3 on a wall 40 in which the ultrasonic sensor 3, is adhered and fixed. Further, an inner diameter (d) in the thin section 42 is formed to be equal to or slightly larger than a diameter D in the oscillation surface 31, thus allowing the stiffness of the wall 40 to be nearly uniform from the center section to an area near the outer periphery section, and allowing the energy of ultrasonic waves propagated in fuel 8 from the wall 40, to be at a high level at nearly the entire region in the diameter direction of a guide section 51 that is the propagation path of ultrasonic waves. Accordingly, the liquid level detector for precisely detecting a liquid surface 81 can be realized, by improving the detection signal level by the ultrasonic sensor 3 by enhancing the energy of reflection waves from the liquid surface 81. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供一种能够精确地检测液位的车辆的液位检测器，通过增加在超声波振荡元件的振荡表面的外周侧的液体中传播的超声波的能量， 一个简单的方法。

解决方案：厚度薄的薄部分42环形地和同心地设置有超声波传感器3的发射表面31在其上粘附和固定超声波传感器3的壁40上。 此外，薄壁部42的内径（d）形成为与摆动面31的直径D相等或略大，从而允许壁40的刚度从中心部至 并且允许来自壁40的在燃料8中传播的超声波的能量在作为超声波传播路径的引导部51的直径方向的大致整个区域处于高水平 波浪。 因此，通过提高来自液面81的反射波的能量，通过提高超声波传感器3的检测信号水平，可以实现用于精确检测液面81的液位检测器。（C）2005 ，JPO＆NCIPI

公开(公告)号：JP2005114374A

公开(公告)日：2005-04-28

申请号：JP2003344888

申请日：2003-10-02

Applicant: Denso Corp ,  株式会社デンソー

Inventor： MIYAGAWA ISAO ,  YASUDA ATSUSHI

IPC: G01F23/28 ,  B60K15/077 ,  F02D45/00 ,  F02M37/00

Abstract: PROBLEM TO BE SOLVED: To provide a level detector for a vehicle, which has superior visibility by enabling an indication value of a level meter to be stably maintained when the liquid level in a tank is inclined. SOLUTION: A baffle plate 6 is fixed to the inner side of a guide pipe 5 so that its lower plane 62 is set approximately parallel to the liquid level 81 and near the highest liquid level 81, more concretely, the lower plane 62 is made coincident with the liquid level 82 in such a state that the quantity of fuel storage in a fuel tank 2 is 90% of the maximum storage quantity. As a result, when fuel in the fuel tank 2 is rocked by vibration of a moving vehicle, ultrasonic waves are reflected by the baffle plate 6 and received by an ultrasonic element 3, and reflection waves from the liquid level 81 are propagated outside of the guide pipe 5 and are not received by the ultrasonic element 3, thereby surely inhibiting such a trouble that indicating the quantity of residual fuel by an indicating section 10 is made unstable. Therefore, a fuel level detector 1 with the superior visibility which can stably maintain the indication value of the indicating section 10, is realized. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种车辆的液位检测器，其具有通过使罐中的液面倾斜时能够稳定地维持液位计的指示值而具有优异的可视性。 解决方案：挡板6固定在导管5的内侧，使得其下平面62设置成大致平行于液面81并且靠近最高液面81，更具体地，下平面62 在燃料箱2中的燃料储存量为最大存储量的90％的状态下与液面82一致。 结果，当燃料箱2中的燃料被移动的车辆的振动摇摆时，超声波被挡板6反射并被超声波元件3接收，并且来自液面81的反射波传播到 引导管5不被超声波元件3接收，从而可靠地抑制由指示部10指示残留燃料量不稳定的问题。 因此，能够实现能够稳定地保持指示部10的指示值的能见度高的燃料液位检测器1。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004317125A

公开(公告)日：2004-11-11

申请号：JP2003106975

申请日：2003-04-10

Applicant: Denso Corp ,  株式会社デンソー

Inventor： YASUDA ATSUSHI ,  MIYAGAWA ISAO

IPC: G01F23/28

Abstract: PROBLEM TO BE SOLVED: To provide a liquid level detection apparatus for vehicles capable of acquiring satisfactory detection accuracy by suppressing the incidence of secondary reflected waves on an ultrasonic sensor. SOLUTION: A surface 42 of a bracket 4 for emitting ultrasonic waves, a part opposed to a calibrating plate 6, and the calibrating plate 6 are not arranged in parallel but inclined at an angle θ to each other. The angle θ is set in such a way that ultrasonic waves reflected at a reflecting surface 61 of the calibrating plate 6 toward the surface 42 may be reflected at the surface 42 but not be incident onto the reflecting surface 61 of the calibrating plate 6 again. Since the ultrasonic waves reflected at the reflecting surface 61 and incident onto the surface 42 are thereby reflected on the surface 42 but not incident on the calibrating plate 6 again and does not cause secondary reflected waves, it is possible to reliably prevent malfunctions such as reductions in accuracy in detecting a liquid surface due to the error recognition of a reception signal at the reception of the secondary waves as a reception signal of reflected waves from the liquid level in a conventional liquid level detection apparatus for vehicles. COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2004286528A

公开(公告)日：2004-10-14

申请号：JP2003077601

申请日：2003-03-20

Applicant: Denso Corp ,  Nippon Soken Inc ,  株式会社デンソー ,  株式会社日本自動車部品総合研究所

Inventor： UCHIDA AKIRA ,  MATSUOKA HISANAGA ,  HASEO YASUYUKI ,  MIYAGAWA ISAO ,  YASUDA ATSUSHI

IPC: G01F23/28

Abstract: PROBLEM TO BE SOLVED: To provide a liquid level detector for vehicles for obtaining improved detection precision by contriving the arrangement of a reflector for measuring a liquid level and that for measuring a propagation interval. SOLUTION: A measurement plate 41 and a calibration plate 42 are arranged overlappingly in the advance direction of ultrasonic waves discharged by an ultrasonic sensor 3, and ultrasonic waves discharged from the ultrasonic sensor 3 are partially transmitted through the measurement plate 41 to reach the calibration plate 42. As a result, the shape of ultrasonic waves entering the measurement plate 41 and the calibration plate 42 is set to be in a conical shape, namely an axisymmetric shape, so that a diffraction phenomenon in ultrasonic waves and interference of ultrasonic waves at the boundary section of both the reflection members in a conventional liquid level detector are prevented. Therefore, since the ultrasonic sensor 3 stably receives reflection waves from a liquid surface 51 and those from the calibration plate 42, the liquid level detector 1 for vehicles for obtaining improved detection precision is achieved. COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2001108403A

公开(公告)日：2001-04-20

申请号：JP28720599

申请日：1999-10-07

Applicant: DENSO CORP

Inventor： TSUDA SHINJI ,  YASUDA ATSUSHI ,  MURAKAMI YOICHI

IPC: H01C10/30 ,  G01B7/00 ,  G01B7/30 ,  G01D5/165 ,  G01F23/36 ,  H01H35/18

Abstract: PROBLEM TO BE SOLVED: To form at least either of a plurality of strips of electrodes and the contact of a slider which slides along the surfaces of those electrodes by using a carbon material. SOLUTION: A plurality of stripes of electrodes 50 extended from a resistance layer 40 and the contact 62 of a slider 60 coming into slide contact with the surfaces of the electrodes 50 are formed of carbon materials.

公开(公告)号：JP2012237593A

公开(公告)日：2012-12-06

申请号：JP2011105440

申请日：2011-05-10

Applicant: Denso Corp ,  株式会社デンソー

Inventor： YASUDA ATSUSHI ,  MIYAGAWA ISAO

IPC: G01F23/38

CPC classification number: G01F23/38

Abstract: PROBLEM TO BE SOLVED: To provide a liquid level detecting device having high durability, detection accuracy and productivity.SOLUTION: A liquid level detecting device is provided in which a rotary body 30 bearing-supported by a fixed body 20 includes: a contact part 33 coming into contact with an end face 61 providing connection between both side surfaces 62 of a magnet 60; a pair of elastic deformation parts 34 protruding from the contact part 33 and separately engaging with the side surfaces 62, respectively, while being elastically deformed by being pressed against the magnet 60; a pair of claws 35 protruding from their respective elastic deformation parts 34 and sandwiching the magnet 60 between themselves and the contact part 33; and a pair of plastic deformation parts 36 protruding from their respective elastic deformation parts 34 and separately engaging with the side surfaces 62, respectively, while being plastically deformed by being pressed against the magnet 60. A magnetoelectric transducer 71 held by the fixed body 20 detects the generated magnetic field of the magnet 60 held by the rotary body 30 by cooperation of elements 33 to 36, to thereby output an electrical signal representing a liquid level.

Abstract translation: 要解决的问题：提供具有高耐久性，检测精度和生产率的液位检测装置。 解决方案：提供一种液位检测装置，其中由固定体20支撑的旋转体30包括：接触部33，其与端面61接触，端面61提供磁体的两个侧表面62之间的连接 60; 一对弹性变形部分34，其从接触部分33突出并且分别与侧表面62接合，同时通过压靠在磁体60上而弹性变形; 一对爪35从它们各自的弹性变形部分34突出并将磁体60夹在它们之间和接触部分33之间; 以及从它们各自的弹性变形部分34突出并且分别与侧表面62接合的一对塑性变形部分36，同时被压在磁体60上而塑性变形。由固定体20保持的磁电变换器71检测 通过元件33至36的协作由旋转体30保持的磁体60产生的磁场，从而输出表示液面的电信号。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2011163924A

公开(公告)日：2011-08-25

申请号：JP2010026835

申请日：2010-02-09

Applicant: Denso Corp ,  株式会社デンソー

Inventor： MIYAGAWA ISAO ,  YASUDA ATSUSHI ,  ISHIKAWA MASAKAZU ,  KATAOKA MASAMI

IPC: G01F23/38

Abstract: PROBLEM TO BE SOLVED: To provide a liquid level measuring system where reduction in detection accuracy of liquid level by noise is suppressed.
SOLUTION: This liquid level measuring system includes a sensor section for measuring the liquid level, and a display section for displaying the liquid level. The sensor section includes a conversion section for converting the variation in liquid level into variation in magnetic flux density, a magnetoelectric conversion section for detecting the variation in magnetic flux density in noncontact and outputting an electric signal according to the variation in magnetic flux density, a current control section for controlling the amount of current flowing in itself based on the electric signal of the magnetoelectric conversion section, power source wiring for connecting the current control section to a power source, ground wiring for connecting the current control section to a ground, a power source resistor disposed in the power source wiring, and an arithmetic processing section for controlling the operation of a display section based on analog voltage between the current control section and power source resistor. The arithmetic processing section controls the operation of the display section based on the analog voltage sampled every constant time.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种抑制液体噪声的检测精度降低的液位测量系统。 该液面测量系统包括用于测量液面的传感器部分和用于显示液面的显示部分。 传感器部分包括用于将液位变化转换成磁通密度变化的转换部分，用于检测非接触中的磁通密度变化的磁电转换部分，并根据磁通密度的变化输出电信号， 电流控制部分，用于基于磁电转换部分的电信号，用于将电流控制部分连接到电源的电源布线，用于将电流控制部分连接到地面的接地布线来控制其自身流动的电流量; 设置在电源布线中的电源电阻器，以及用于基于电流控制部分和电源电阻器之间的模拟电压来控制显示部分的操作的运算处理部分。 算术处理部分基于每个恒定时间采样的模拟电压来控制显示部分的操作。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010085111A

公开(公告)日：2010-04-15

申请号：JP2008251414

申请日：2008-09-29

Applicant: Denso Corp ,  株式会社デンソー

Inventor： YASUDA ATSUSHI ,  MIYAGAWA ISAO

IPC: G01F23/38

Abstract: PROBLEM TO BE SOLVED: To prevent a conducting means for bringing an arm and a ground terminal into conduction from protruding outside from both a rotating unit and a main unit in a liquid level detector.
SOLUTION: The liquid level detector 1 includes: the rotating unit 4; the main unit 5 which rotatably supports the rotating unit 4 and in which the ground terminal 54 is provided; a float floating on a liquid; an electrically conductive arm 3 which connects the float and the rotating unit 4 to convert the vertical motion of the float into the rotational motion of the rotating unit 4; an electrically conductive first conducting member 11 of which one end is electrically connected to the ground terminal 54; an electrically conductive second conducting member 121 which is electrically connected to the arm 3 and rotates together with the arm; and the conducting means 10 which brings the arm 3 and the ground terminal 54 into electric conduction. The first conducting member 11 includes a side part 114 at the other end, which has an arc shape along the rotational trajectory of the second conducting member 121 and on which the rotating second conducting member 121 slides.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了防止在液位检测器中从旋转单元和主单元的突出外部引导臂和接地端子的导电装置。 解决方案：液位检测器1包括：旋转单元4; 可旋转地支撑旋转单元4并且设置有接地端子54的主单元5; 漂浮在液体上的浮子; 连接浮子和旋转单元4以将浮子的垂直运动转换成旋转单元4的旋转运动的导电臂3; 导电的第一导电构件11，其一端电连接到接地端子54; 导电的第二导电构件121，其电连接到臂3并与臂一起旋转; 以及使臂3和接地端子54导通的导电装置10。 第一导电构件11包括在另一端的侧部114，其沿着第二导电构件121的旋转轨迹具有弧形，并且旋转的第二导电构件121在其上滑动。 版权所有（C）2010，JPO＆INPIT