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公开(公告)号：US20170322066A1
公开(公告)日：2017-11-09
申请号：US15524652
申请日：2015-11-23
申请人： DENSO CORPORATION
发明人： Hiroshi HASHIMOTO , Isao MIYAGAWA
摘要： A liquid level detection device is provided with a fixed body and a rotating body, and includes a float and an arm. The arm has an insertion portion to be inserted in the rotating body and an extending portion extending straight and bent relative to the insertion portion. The rotating body has an insertion hole in which the insertion portion is inserted in an insertion direction, a holding portion having a receiving opening receiving the extending portion in an intersecting direction intersecting with the insertion direction and holding the extending portion received by the receiving opening, and a stopper releasing the receiving opening by moving in the insertion direction due to elastic deformation from a blocking state in which a blocking portion blocks the receiving opening. The stopper has a sliding surface portion facing an opposite direction to the insertion direction, on which the extending portion is allowed to slide. A thickness of the blocking portion in the insertion direction at a tip end of the sliding surface portion is greater than a diameter of the extending portion.
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公开(公告)号：US09772214B2
公开(公告)日：2017-09-26
申请号：US15014594
申请日：2016-02-03
发明人： Masaki Ikeya , Takahiro Nakamura
CPC分类号： G01F23/38
摘要： A liquid level detector may comprise an arm attached to a float, a rotator fixed to the arm, a magnet fixed to the rotator, a supporter rotatably supporting the rotator. The supporter may comprise a body housing a magnetic sensor and opposing the magnet with a clearance, a supporting portion disposed along a rotation direction of the arm on an outer circumference side of the magnet and projecting from the body toward the rotator, and a flange portion projecting from the supporting portion along an outer circumference direction at a position spaced from the body in a rotational axial direction of the arm. The rotator may comprise an engaging portion slidably disposed relative to the flange portion along the rotation direction of the arm and engaging the flange portion so as to regulate a motion of the arm in the rotational axial direction.
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公开(公告)号：US09752919B2
公开(公告)日：2017-09-05
申请号：US14655018
申请日：2013-12-12
发明人： Hiroyuki Iryo , Yoshiyuki Shimazaki
CPC分类号： G01F23/32 , F02M37/0082 , G01F23/38
摘要： Provided is a liquid level detection device which is configured so that an arm can be easily mounted to a holder after the holder is pivotably mounted using a cover and a main body portion. An end of a float arm is bent at a substantially right angle, and the end side of the float arm is defined as a first end portion. The portion of the float arm which is located closer to the center of the float arm than the first end portion is defined as a second end portion. A first arm mounting portion to which the first end portion is affixed and second arm mounting portions to which the second end portion is affixed are provided to a holder. A stopper for restricting the pivot range of the holder is provided to a main body portion. A first stopper which comes into contact with the stopper is provided to the holder. The first arm mounting portion and the first stopper are provided on a line passing through the pivot axis of the holder and perpendicular to the pivot axis.
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公开(公告)号：US09709435B2
公开(公告)日：2017-07-18
申请号：US14635249
申请日：2015-03-02
申请人： Gems Sensors, Inc.
IPC分类号： G01F23/38
CPC分类号： G01F23/38
摘要： A liquid level sensor for use with a container, including a housing with a body defining an interior volume, a switch actuated by an applied magnetic flux field to a closed position, the switch being disposed within the interior volume of the housing, and a float including a body, a first end and a second end opposite the first end. A pivot assembly includes a magnet and couples the housing and the first end of the float such that the float is pivotable about the pivot assembly between a first position and a second position, and a shunt is disposed within the first end of the float body. The shunt is disposed between the magnet and the switch in the first position of the float, thereby shielding the switch from the magnetic flux of the magnet such that the switch is in the open position.
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公开(公告)号：US09618379B2
公开(公告)日：2017-04-11
申请号：US14571210
申请日：2014-12-15
发明人： Shinsuke Hirahara , Masaki Ikeya
IPC分类号： G01F23/38
CPC分类号： G01F23/38
摘要： A liquid amount measuring device 10 includes a plurality of detectors 36, 22 arranged within a vessel, each of the plurality of detectors being configured to output a first analog signal, and an output circuit 38 configured to output an analog detection signal corresponding to an amount of the liquid stored in the vessel based on the first analog signals outputted by the detectors. Each of the detectors 36, 22 includes a float 24, 32; an arm member 26, 34 configured to convert a vertical motion of the float 24, 32 to a rotational motion; and a magnetic sensor 31, 41 configured to output a second analog signal corresponding to the rotational motion of the arm member. The output circuit 38 is configured to correct the first analog signals outputted from the detectors 22, 36 and add the corrected first analog signals so as to output the analog detection signal.
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公开(公告)号：US09599502B2
公开(公告)日：2017-03-21
申请号：US14337768
申请日：2014-07-22
发明人： Matthew Tao , CheeWee Goh
CPC分类号： G01F25/0061 , G01D3/08 , G01D5/145 , G01F23/38
摘要： Magnetic field sensor feedback for diagnostics is disclosed herein. A disclosed example apparatus includes a first magnetic field sensor to provide a first output signal in response to a magnetic field generated by a magnet coupled to a movable portion of a process control device, and a second magnetic field sensor to provide a second output signal in response to the magnetic field. The disclosed example apparatus also includes a processor to use the first and second output signals to generate diagnostic information associated with a feedback of the process control device.
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公开(公告)号：US20160298998A1
公开(公告)日：2016-10-13
申请号：US15086676
申请日：2016-03-31
申请人： Lin Yang
发明人： Lin Yang
IPC分类号： G01F23/38
摘要： Methods and systems for converting mechanical oil gauge into an electronic oil gauge. A magnet pairing mechanism and a resistive sensing module are configured to amount to a mechanical oil gauge. The indicator of the mechanical oil gauge moves with the first magnet which cause the second magnet to move on the resistive sensing module which results in changing the resistance of the resistive sensing module at the sliding-to-position, producing an electric signal that is corresponding to the oil level.
摘要翻译： 将机械油压表转换成电子油压表的方法和系统。 磁体配对机构和电阻感测模块配置成相当于机械油位计。 机械油表的指示器与第一磁体一起移动，导致第二磁体在电阻感测模块上移动，导致电阻感测模块在滑动到位置的电阻变化，产生相应的电信号 到油位。
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公开(公告)号：US20160223384A1
公开(公告)日：2016-08-04
申请号：US15010002
申请日：2016-01-29
发明人： Yuichi Manabe , Sumito Takeda
IPC分类号： G01F23/38
CPC分类号： G01F23/38
摘要： In a liquid level detector, a first clearance may expand as at least one of a rotator and a supporter swells with a target liquid. The first clearance may be a smaller one of an inner clearance between an inner circumference side of a first guide rail and an inner circumference portion and an outer clearance between an outer circumference side of the first guide rail and the outer circumference portion, in a state where the rotator and the supporter are not swelled with the target liquid. A second clearance may contract to become smaller than the first clearance as at least one of the rotator and the supporter swells with the target liquid. The second clearance may be a larger one of the inner clearance and the outer clearance in the state where the rotator and the supporter are not swelled with the target liquid.
摘要翻译： 在液位检测器中，当旋转器和支撑件中的至少一个与目标液体一起膨胀时，第一间隙可以膨胀。 第一间隙可以是第一导轨的内周侧与内周部之间的内部间隙和第一导轨的外周侧与外周部之间的外部间隙中的较小的一个， 其中旋转器和支撑件不会与目标液体一起膨胀。 当旋转器和支撑件中的至少一个与目标液体一起膨胀时，第二间隙可能收缩成小于第一间隙。 在旋转体和支撑体不与目标液体隆起的状态下，第二间隙可以是内部间隙和外部间隙中较大的一个。
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公开(公告)号：US20160153823A1
公开(公告)日：2016-06-02
申请号：US14904341
申请日：2014-07-09
申请人： DENSO CORPORATION
发明人： Isao MIYAGAWA
IPC分类号： G01F23/38
CPC分类号： G01F23/38
摘要： A liquid-level detection device includes a rotatable body that rotates in accordance with a liquid surface, a fixation body that includes a main body part fixed to a container and a supporting part projecting from the main body part in an axial direction along a rotation axis of the rotatable body to rotatably support the rotatable body, a pair of magnet parts that are held by the rotatable body in an arrangement positioning the supporting part therebetween and that generates a magnetic flux passing through the supporting part, and a detecting part that includes a magnetoelectric conversion device disposed in the supporting part and that outputs a detection result according to a density of the magnetic flux passing through the magnetoelectric conversion device. The rotatable body includes a magnetic shield member entirely covering a projection region of a space located between the pair of magnet parts, which is projected outward in the axial direction, to limit leakage of the magnetic flux. The magnetic shield member is located outward of the supporting part and the pair of magnet parts in the axial direction to include an exposed surface which is exposed into the container.
摘要翻译： 液面检测装置包括：根据液面旋转的旋转体;固定体，其包括固定在容器上的主体部;以及支撑部，其沿轴向沿着旋转轴从主体部突出; 所述可旋转体以可旋转的方式支撑所述可旋转体，所述一对磁体部分被所述可旋转体保持，使所述支撑部位在其间定位，并且产生穿过所述支撑部的磁通量;以及检测部， 磁电转换装置设置在支撑部分中，并且根据通过磁电转换装置的磁通密度输出检测结果。 旋转体包括一个完全覆盖位于沿轴向向外突出的一对磁体部分之间的空间的突出区域的磁屏蔽件，以限制磁通量的泄漏。 磁屏蔽构件位于支撑部分的外侧，并且一对磁体部件沿轴向方向包括暴露于容器中的暴露表面。
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公开(公告)号：US20150308881A1
公开(公告)日：2015-10-29
申请号：US14695201
申请日：2015-04-24
发明人： Masashi Go , Nobuo Suzuki
IPC分类号： G01F23/38
CPC分类号： G01F23/38
摘要： A liquid level detector may comprise an arm attached to a float, a holder fixed to the arm, and a body rotatably supporting the holder. The body may comprise a first rotation regulator and a second rotation regulator. The first rotation regulator may regulate a rotation angle range of the arm to a first range. The second rotation regulator may regulate the rotation angle range of the arm to a second range. The first range and the second range may not overlap each other in a rotation direction of the arm. Each of the plurality of rotation regulators may comprise a pair of stoppers disposed separately from each other in the rotation direction of the arm. At least a part of area between the pair of stoppers of the each of the plurality of rotation regulators may be open to outside of the body.
摘要翻译： 液面检测器可以包括附接到浮子的臂，固定到臂的保持器和可旋转地支撑保持器的主体。 主体可以包括第一旋转调节器和第二旋转调节器。 第一旋转调节器可以将臂的旋转角度范围调节到第一范围。 第二旋转调节器可以将臂的旋转角度范围调节到第二范围。 第一范围和第二范围在臂的旋转方向上可能不重叠。 多个旋转调节器中的每一个可以包括在臂的旋转方向上彼此分开设置的一对止动件。 所述多个旋转调节器中的每一个的所述一对止动件之间的至少一部分区域可以向所述主体的外部敞开。
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