EP3488199A1 - Indicateur de niveau - Google Patents

Indicateur de niveau

Info

Publication number
EP3488199A1
EP3488199A1 EP17739585.2A EP17739585A EP3488199A1 EP 3488199 A1 EP3488199 A1 EP 3488199A1 EP 17739585 A EP17739585 A EP 17739585A EP 3488199 A1 EP3488199 A1 EP 3488199A1
Authority
EP
European Patent Office
Prior art keywords
contact
contact element
resistance network
level sensor
spacer
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP17739585.2A
Other languages
German (de)
English (en)
Inventor
Hans-Guenter Benner
Bernd Pauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Automotive GmbH
Original Assignee
Continental Automotive GmbH
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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP3488199A1 publication Critical patent/EP3488199A1/fr
Withdrawn legal-status Critical Current

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
    • G01F23/56—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 elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements
    • G01F23/60—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 elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements using electrically actuated indicating means
    • 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
    • G01F23/38—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 magnetically actuated indicating means
    • 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
    • G01F23/40—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 bands or wires as transmission elements
    • G01F23/46—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 bands or wires as transmission elements using magnetically actuated indicating means
    • 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
    • G01F23/56—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 elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements
    • G01F23/62—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 elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements using magnetically actuated indicating means

Definitions

  • the invention relates to a level sensor for the determination of a level in a tank, with a resistance network, with a contact element and with a magnetic element, wherein the contact element is arranged at a distance from the resistor network and the magnetic element is movable relative to the Wi ⁇ derstandsnetztechnik and the contact element wherein the contact element has a contact region, which is deflectable by the magnetic element, wherein an electrically conductive connection between the contact region and the
  • Resistance network can be produced by the deflection of the contact area.
  • Level sensor for determining the level in one
  • Fuel tank have a resistance network, which generates a signal which corresponds to the level in the fuel tank, depending on the actual level.
  • a float is regularly provided, which floats on the surface of the fuel in the fuel tank and acts by means of a Ge ⁇ Stijnes and a sliding contact on the resistor network. The movement of the float due to a rising or falling level is transmitted via the linkage to the sliding contact, due to the movement of the
  • Resistor network is passed. Depending on the position of the sliding contact, a different signal is generated. By normalizing the signal and a specific design of the resistor network, the signal generated on the resistor network can be directly applied to the signal
  • level sensors which have a contact element instead of a sliding contact, which is a
  • a level sensor which has a mechanically more resistant contact element and at the same time wear-free generation of one of the level in the power ⁇ fuel tank dependent and possible accurate signal possible.
  • level sensor with the features of claim 1.
  • a level sensor for determining a level in a tank comprising a resistance network, having a contact element and a magnetic element, wherein the contact element is spaced from the resistor network and the magnetic element is movable relative to the resistance network and the contact element, wherein the contact element is a contact region which can be deflected by the magnetic element, wherein an electrically conductive connection between the contact region and the resistor network by the deflection of the contact region can be produced, wherein between the contact element and the resistor network, a spacer element is arranged, wherein by the spacer element a predeterminable distance between the Contact element , and be ⁇ especially between the contact region of the contact element and the resistor network, is generated, wherein the spacer element is formed of a fuel-resistant material.
  • the spacer is necessary to a defined
  • the entire level sensor is preferably located directly in the fuel tank and is flushed with fuel, either a particularly high cost must be operated to ensure the operability to perform the housing of the level sensor fluid-tight or it must be made a suitable choice of material to insensitive the level sensor the corrosive properties of the fuel.
  • a fuel-resistant material for the spacer is therefore particularly advantageous. It is particularly advantageous if the spacer element is formed from a corrosion-resistant metallic material. A metallic material is particularly advantageous because a variety of metals are known which are resistant to the corrosive properties of fuel. In addition, the production and processing of the spacer element is possible in a simple and varied manner.
  • the contact element is formed from a plastic. This is advantageous in order to enable a particularly cost-effective production of the contact element. It is particularly advantageous for a contact element made of plastic in particular that it can be produced in a variety of forms and has sufficiently high flexibility. Particularly preferably, a fuel-resistant material is used for the contact element.
  • a preferred embodiment is characterized in that the contact element has an electrically conductive coating on the side facing the resistor network.
  • An electrically conductive coating is necessary if the contact element is made of a per se not electrically conductive material. Only in this way can an electric circuit be closed by a contact between the contact element and the resistance network.
  • the contact element formed from a fundamentally non-electrically conductive material may also have conductive structures which are applied to the surface, in particular the surface facing the resistive network . Such electrically conductive structures can also be in the
  • the complete coating of the contact element with an electrically conductive coating can also be provided.
  • this coating is then made so thin ⁇ forms that the flexibility of the contact element is not adversely affected.
  • the spacer is tempera ⁇ turunlateral and dimensionally stable in a temperature range from -40 degrees Celsius to +125 degrees Celsius. The dimensional stability over this wide temperature range is advantageous since, in particular within the fuel tank, such temperatures are to be expected in normal operation.
  • the resistance network and the spacer element are arranged on a ceramic carrier substrate, wherein the spacer element is screwed to the carrier substrate or is adhesively bonded or clamped. This is particularly advantageous to produce a permanent dimensionally stable joint between the spacer element and the resistor ⁇ network or the carrier substrate of the resistor ⁇ network.
  • the spacer element is screwed to the contact element or is glued or jammed.
  • different forms of attachment may be advantageous.
  • the spacer element is made in one piece with the contact element and forms a common unit with the contact element. A one-piece design is above ⁇ geous, since the number of individual components in the
  • Level sensor is thereby reduced, whereby the production is simplified and the production costs can be reduced. Furthermore, it can be prevented by a one-piece design that there is tension between the contact element and the spacer comes, which ultimately could negatively affect the measurement of the level.
  • the resistance network has a plurality of contact surfaces which are arranged at a distance from one another, wherein an electrical signal can be generated by contacting the contact region of the contact element with at least one contact surface of the resistance network, wherein each contact surface of the resistance network has a defined fill level reflected in the tank.
  • This is advantageous in order to be able to make a statement about the fill level in the fuel tank, depending on the position of the magnetic element.
  • the magnetic element deflects depending on its position, which is in direct connection with the position of the floating body of the level sensor, only a certain portion of the contact element. As a result, an electrical contact between this deflected portion of the contact element and a specific contact surface of the resistor network is generated.
  • FIG. 1 shows a sectional view through the housing of a
  • the level sensor 1 shows a sectional view through a level sensor 1.
  • the level sensor 1 has a housing 3 and a carrier substrate 2, in which the contact element 4 and the dis ⁇ dance element 5 are arranged.
  • the carrier substrate 2 is preferably formed from a ceramic material.
  • the resistor network 6 consists of an electrically conductive network, wherein each section of the resistor network 6 is associated with a specific electrical resistance.
  • the contact element 4 is spaced from the resistance network 6 by the spacer element 5. As a result, a defined distance is generated between the contact element 4 and the resistance network 6. By deflecting the contact element 4 in the direction of the resistor network 6, an electrical contact between the contact element 4 and the resistance ⁇ network 6 can be generated. Through this electrical contact, a circuit can be closed whereby a signal is generated, which can be processed by a downstream controller.
  • the spacer element 5 is formed in the embodiment of Figure 1 by a metallic material which is in particular re ⁇ sistant to the corrosive influences of the fuel is formed.
  • a metallic material which is in particular re ⁇ sistant to the corrosive influences of the fuel is formed.
  • Spacer 5 may also be formed by a plastic having sufficiently resistant material properties.
  • a magnetic element which is arranged below the support substrate 2, or the counter ⁇ stood network. 6
  • the magnetic element can along the carrier substrate 2 are moved whereby a partial deflection of the contact element 4 can be caused.
  • the spacer element 5 is preferably glued to the contact element 4 and / or the carrier substrate 2, welded, clamped or screwed. Alternative fastening methods between the aforementioned elements are foreseeable.
  • the goal pursued by the level sensor 1 is, in particular, to provide a level sensor 1 which does not have to be completely sealed off from the fuel surrounding the level sensor 1. Small amounts in the
  • Level sensor 1 penetrate according to the embodiment of Figure 1 no harmful effect on the spacer element 5.
  • a level sensor 1 is provided, which has a particularly high resistance to the harmful corrosive influences of the fuel. This is particularly beneficial for a long durability.
  • the embodiment of Figure 1 has in particular no limiting character and serves to illustrate the inventive concept. Embodiments deviating from the exemplary embodiment of FIG. 1, in particular deviating with regard to the dimensions, the choice of material or the design of individual elements, are likewise conceivable and within the scope of the present invention, provided that a sufficient resistance of the spacer element 5 to the fuel is created.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

L'invention concerne un indicateur de niveau (1) permettant de déterminer le niveau de remplissage d'un réservoir, comprenant un réseau résistif (6), un élément de contact (4) et un élément magnétique, l'élément de contact (4) étant agencé à distance du réseau résistif (6) et l'élément magnétique étant mobile par rapport au réseau résistif (6) et à l'élément de contact (4). L'élément de contact (4) présente une zone de contact qui peut être déviée par l'élément magnétique, une liaison électriquement conductrice pouvant être établie entre la zone de contact et le réseau résistif (6) par l'intermédiaire de la déviation de la zone de contact. Un élément d'espacement (5) est placé entre l'élément de contact (4) et le réseau résistif (6), cet élément d'espacement (5) maintenant une distance prédéterminable entre l'élément de contact (4) et en particulier entre la zone de contact de l'élément de contact (4) et le réseau résistif (6). L'élément d'espacement (5) est constitué d'un matériau résistant aux carburants.
EP17739585.2A 2016-07-22 2017-07-14 Indicateur de niveau Withdrawn EP3488199A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016213506.6A DE102016213506A1 (de) 2016-07-22 2016-07-22 Füllstandsgeber
PCT/EP2017/067865 WO2018015297A1 (fr) 2016-07-22 2017-07-14 Indicateur de niveau

Publications (1)

Publication Number Publication Date
EP3488199A1 true EP3488199A1 (fr) 2019-05-29

Family

ID=59337691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17739585.2A Withdrawn EP3488199A1 (fr) 2016-07-22 2017-07-14 Indicateur de niveau

Country Status (5)

Country Link
US (1) US20210247226A1 (fr)
EP (1) EP3488199A1 (fr)
CN (1) CN109313065B (fr)
DE (1) DE102016213506A1 (fr)
WO (1) WO2018015297A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021204881B4 (de) * 2021-05-12 2023-11-16 Vitesco Technologies GmbH Kraftstofffördervorrichtung, Kraftstofftank mit einer derartigen Kraftstofffördervorrichtung, Verfahren zur Bestimmung der Temperatur eines Fluids innerhalb eines Kraftstofftanks, Verfahren zur Steuerung und/oder Regelung eines Elektromotors sowie Verfahren zur Steuerung und/oder Regelung einer Zuführung von Kraftstoffdämpfen zu einem Verbrennungsprozess einer Verbrennungskraftmaschine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19701246A1 (de) 1997-01-16 1998-07-23 Mannesmann Vdo Ag Füllstandsgeber
CN2575621Y (zh) * 2002-11-11 2003-09-24 王健能 一种燃油传感器
CN2670921Y (zh) * 2003-10-13 2005-01-12 中国重型汽车集团有限公司 一种汽车燃油传感器
DE102004039853A1 (de) * 2004-08-17 2006-03-09 Siemens Ag Elektrische Baueinheit und Verfahren zum Herstellen einer solchen Baueinheit
JP5213343B2 (ja) * 2007-03-22 2013-06-19 矢崎総業株式会社 抵抗板、および該抵抗板を備えた液面レベル検出装置
US7784342B2 (en) * 2007-06-29 2010-08-31 Gm Global Technology Operations, Inc. Multi-slope variable resistance fuel sender unit
DE102007061316A1 (de) * 2007-12-19 2009-06-25 Continental Automotive Gmbh Tankgeberplatine
JP5376980B2 (ja) * 2009-02-09 2013-12-25 矢崎総業株式会社 液面検出装置
WO2011139601A2 (fr) * 2010-04-27 2011-11-10 Cummins Filtration Ip, Inc. Capteur multi-conducteur d'eau dans un carburant pour la détection d'un taux de remplissage
CN201754101U (zh) * 2010-07-09 2011-03-02 北汽福田汽车股份有限公司 一种燃油传感器
DE102014210717A1 (de) * 2014-06-05 2015-12-17 Robert Bosch Gmbh Füllstandssensor für Kraftfahrzeugtank mit metallischem Abstandshalterelement

Also Published As

Publication number Publication date
CN109313065B (zh) 2020-10-09
US20210247226A1 (en) 2021-08-12
DE102016213506A1 (de) 2018-01-25
WO2018015297A1 (fr) 2018-01-25
CN109313065A (zh) 2019-02-05

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