WO2015087146A3 - Liquid level sensor - Google Patents

Liquid level sensor Download PDF

Info

Publication number
WO2015087146A3
WO2015087146A3 PCT/IB2014/002728 IB2014002728W WO2015087146A3 WO 2015087146 A3 WO2015087146 A3 WO 2015087146A3 IB 2014002728 W IB2014002728 W IB 2014002728W WO 2015087146 A3 WO2015087146 A3 WO 2015087146A3
Authority
WO
WIPO (PCT)
Prior art keywords
liquid level
contact
point
producing component
resistive strip
Prior art date
Application number
PCT/IB2014/002728
Other languages
French (fr)
Chinese (zh)
Other versions
WO2015087146A2 (en
Inventor
宁营杰
张倩
Original Assignee
大陆汽车有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 大陆汽车有限公司 filed Critical 大陆汽车有限公司
Publication of WO2015087146A2 publication Critical patent/WO2015087146A2/en
Publication of WO2015087146A3 publication Critical patent/WO2015087146A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/32—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements
    • G01F23/36—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements using electrically actuated indicating means
    • G01F23/363—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements using electrically actuated indicating means using electromechanically actuated indicating means

Abstract

The present utility model relates to a liquid level sensor comprising a circuit board having a resistive strip, a contact-point-producing component, and a float lever assembly. The contact-point-producing component is adapted for causing at least a part of the resistive strip to enter a state of electrical connection to a pre-set circuit on the circuit board. The float lever assembly is adapted for driving, on the basis of a change in the liquid level, the contact-point-producing component to shift, thereby enabling the circuit to output an electrical signal reflecting a change in the liquid level. The invention is characterized in that the contact-point-producing component is provided with a wheel that causes the resistive strip to enter a state of electrical connection. The electrical connection is created as a result of rolling movement produced as the edge of the wheel presses against the resistive strip.
PCT/IB2014/002728 2013-12-10 2014-12-10 Liquid level sensor WO2015087146A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201320808820.4 2013-12-10
CN201320808820.4U CN203798419U (en) 2013-12-10 2013-12-10 Liquid level sensor

Publications (2)

Publication Number Publication Date
WO2015087146A2 WO2015087146A2 (en) 2015-06-18
WO2015087146A3 true WO2015087146A3 (en) 2016-06-16

Family

ID=51380624

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2014/002728 WO2015087146A2 (en) 2013-12-10 2014-12-10 Liquid level sensor

Country Status (2)

Country Link
CN (1) CN203798419U (en)
WO (1) WO2015087146A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104197963B (en) * 2014-09-19 2017-03-29 重庆诺柏恩自动化技术有限公司 The potentiometer that magnetic coordinated type sensor and the sensor are constituted
CN109798952A (en) * 2019-03-27 2019-05-24 昆山福烨电子有限公司 A kind of closed type liquid level sensor
CN114323193B (en) * 2022-03-14 2022-05-24 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) Hydrogeological drilling water level monitoring device and method based on radio

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1174692A1 (en) * 1999-11-30 2002-01-23 Nippon Seiki Co., Ltd. Liquid level detector
US20070163341A1 (en) * 2006-01-16 2007-07-19 Yazaki Corporation Sliding fluid level-detecting device
WO2008022927A1 (en) * 2006-08-22 2008-02-28 Robert Bosch Gmbh Variable resistor for measuring fill level
DE102006054811A1 (en) * 2006-11-21 2008-05-29 Siemens Ag Liquid level sensor for motor vehicle, has contact unit that is driven by magnetic device on movement path along longitudinal extension of resistance channel in movable manner and in conductive connection with resistance and contact channel
DE102006054812A1 (en) * 2006-11-21 2008-06-12 Siemens Ag Position indicator for determining position of moving article, has resistance track, operating voltage connection, and contact track arranged at distance from resistance course
DE102008002226A1 (en) * 2007-07-09 2009-01-15 Robert Bosch Gmbh level sensor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202631060U (en) 2011-12-30 2012-12-26 大陆汽车电子(芜湖)有限公司 Liquid level sensor and wafer thereof
CN203148528U (en) 2013-03-21 2013-08-21 浙江湖州新京昌电子有限公司 Wear-free long-service-life high-reliability liquid level sensor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1174692A1 (en) * 1999-11-30 2002-01-23 Nippon Seiki Co., Ltd. Liquid level detector
US20070163341A1 (en) * 2006-01-16 2007-07-19 Yazaki Corporation Sliding fluid level-detecting device
WO2008022927A1 (en) * 2006-08-22 2008-02-28 Robert Bosch Gmbh Variable resistor for measuring fill level
DE102006054811A1 (en) * 2006-11-21 2008-05-29 Siemens Ag Liquid level sensor for motor vehicle, has contact unit that is driven by magnetic device on movement path along longitudinal extension of resistance channel in movable manner and in conductive connection with resistance and contact channel
DE102006054812A1 (en) * 2006-11-21 2008-06-12 Siemens Ag Position indicator for determining position of moving article, has resistance track, operating voltage connection, and contact track arranged at distance from resistance course
DE102008002226A1 (en) * 2007-07-09 2009-01-15 Robert Bosch Gmbh level sensor

Also Published As

Publication number Publication date
CN203798419U (en) 2014-08-27
WO2015087146A2 (en) 2015-06-18

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