WO2007090625A1 - Récipient en plastique avec au moins une électrode en plastique électriquement conducteur - Google Patents

Récipient en plastique avec au moins une électrode en plastique électriquement conducteur Download PDF

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Publication number
WO2007090625A1
WO2007090625A1 PCT/EP2007/001037 EP2007001037W WO2007090625A1 WO 2007090625 A1 WO2007090625 A1 WO 2007090625A1 EP 2007001037 W EP2007001037 W EP 2007001037W WO 2007090625 A1 WO2007090625 A1 WO 2007090625A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
plastic
container body
electrically conductive
container
Prior art date
Application number
PCT/EP2007/001037
Other languages
German (de)
English (en)
Inventor
Marlene Rinner
Fabrizio Civetta
Original Assignee
Röchling Automotive AG & Co. KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37943906&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2007090625(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Röchling Automotive AG & Co. KG filed Critical Röchling Automotive AG & Co. KG
Publication of WO2007090625A1 publication Critical patent/WO2007090625A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48—Liquid supply therefor
    • B60S1/50—Arrangement of reservoir
    • 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
    • G01F23/22—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/24—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
    • G01F23/241—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid for discrete levels
    • G01F23/242—Mounting arrangements for electrodes

Definitions

  • Plastic container with at least one electrode made of electrically conductive plastic
  • the present invention relates to a plastic container having a container body and having an electrode means disposed on the container body such that at least a portion of the electrically conductive electrode means for contacting by material filled or filled in the container body is exposed inside the container body.
  • the container body surrounds a certain volume of space into which material can be introduced through an opening in the container body.
  • the material level in the container body can be detected by an electrically conductive electrode device.
  • the electrode device must have at least two electrodes of different electrical potential, which are only electrically connected to one another by the material filled into the container body. Depending on whether or not the at least two electrodes of different potential are electrically conductively connected to one another by the filled material, a minimum filling level in the container body can be detected with a corresponding arrangement of the electrode device relative to the container body.
  • the electrical resistance existing between the electrodes changes with the filling level, so that when the minimum filling level is exceeded in the container body, from which a contacting of the electrode device by the filled material, by measuring the electrical resistance between the electrodes on the Material level in the container body can be closed.
  • plastic containers are used, inter alia, in the automotive industry as a resource container, in particular as a spray water container for the windshield and windshield wiper cleaning or asdebergaustechnischs practics practicer.
  • the electrode devices known from the prior art comprise metallic electrodes, which are generally elongated and protrude into the interior of the container body.
  • a disadvantage of the known from the prior art solution is, first, that it comes through the flow of current between the metallic electrodes of the known electrode devices over the operating time to an electrolysis, which in turn leads to deposits of the
  • Electrolysis separated components of the filled into the container body material leads.
  • the result is changing operating characteristics of the electrode device with increasing deposition and undesirably increasing the reliability of the detection result with the operating time.
  • the known electrode devices are often attached to the container body in such a way that they pass through from the outside to the inside, which leads to a considerable outlay for the sealing of the container body at the points of penetration. Even if the metal electrodes are encapsulated in a container body produced by injection molding during its production, this compound is not tight over the entire expected life of the plastic container, so that additional seals, such as O-rings, must be used to increase the sealing effect. For this purpose, appropriate sealing seats are provided on the metallic electrodes.
  • plastic containers of the type mentioned can be produced with significantly lower cost while improving the quality of reliability, tightness and service life.
  • the electrode device is attached to a wall of the container body.
  • the electrode device particularly preferably passes through a wall of the container body, since the contacting of electrodes through material filled into the container body can take place at the portion of the electrode device located in the interior of the container body, and a potential may flow between the electrodes when the voltage is applied to the electrodes of the electrode device Current can be conveniently detected at the located outside of the container body portion of the Elektrodeneinrich- device.
  • the electrode device for this purpose, provision can be made, in particular, for the electrode device to have a connecting strip made of electrically conductive plastic. has cut, which is designed for contacting by an electrical line.
  • this connection section is formed integrally with at least one electrode of the electrode device.
  • the connection section can already be formed during the initial shaping of the electrode device or its respective electrode.
  • diffusion processes or fusion processes may occur between the container body and the electrically conductive plastic of the electrode device, independently of the manufacturing method used to produce the plastic container, which at least partially lead to a cohesive connection of the electrically conductive plastic of the electrode device with the plastic of the container body can lead.
  • the difference between the respective thermal expansion coefficients of the electrically conductive plastic and the plastic of the container body is substantially lower than in the metal-plastic material pair used in the prior art, so that thermally induced relative movements between electrode device and container body lower than in known Kunststoff matem, which increases the tightness of an interspersed by electrode container body.
  • At least one electrode, preferably all electrodes, of the electrode device of the plastic container according to the invention are preferably designed as elongate components which extend along an electrode longitudinal axis.
  • This has the advantage that the container body, as described above, can be penetrated by at least one electrode, preferably by all the electrodes, and on the electrodes themselves a sufficiently long section is available, at which they can be enclosed by the plastic of the container body ,
  • the longer the area enclosing the electrodes can be formed in the direction of the longitudinal axis of the electrode the better the container body can be at the point of penetration of the electrode device due to the increasing sealing surface without the use of additional sealing means formed separately from the container body and the electrode arrangement, such as sealing rings, sealed against leakage.
  • the elongated electrode preferably has the above-described connection section in the region of its longitudinal end lying outside the container body, so that a sufficiently long electrode can be produced with the lowest possible requirement for electrically conductive plastic.
  • the electrode can be formed as needed in the desired shape by suitable Urformwerkmaschinemaschinee. "Substantially complete” is not intended to exclude that small amounts of other materials, such as contact shoes on the terminal portions and the like, may be provided on the electrode of the electrode device in question.
  • the above-mentioned diffusion processes or merging processes between the material of the container body and the electrically conductive plastic of the electrode device, which lead to increased tightness of a container body of the plastic container penetrated by at least one electrode, can then be effected particularly simply if the container body forming the container body Plastic and at least a portion of the electrically conductive electrode device forming electrode-plastic compatible or have the same polymers. '
  • the electrically conductive plastic comprises a polymer matrix and electrically conductive particles incorporated therein, wherein the plastic of the polymer matrix and the container body Plastic compatible or even identical.
  • the electrode device may comprise only a single electrode component which is exposed in the container body, if the latter has galvanically separated electrode elements of different electrical potential.
  • an electrode component is less preferred, since its production is very complicated.
  • a preferred embodiment of a plastic container according to the present invention comprises two spaced-apart electrically conductive electrodes, both of which are at least partially made of electrically conductive plastic and both are arranged on the container body, that in each case at least a portion of the electrically conductive electrodes in the interior of the container body is exposed.
  • the plastic container described above can be produced by any desired manufacturing method.
  • the electrodes of the electrode device and the container body can be manufactured in separate manufacturing processes and subsequently assembled together become.
  • such a production method would not make optimum use of the essential advantages of the plastic container according to the invention.
  • the electrodes of the Elektrodeneinrich- device may be thought to manufacture the electrodes of the Elektrodeneinrich- device separately from the container body and insert it into a master mold for the production of the container body.
  • the plastic molding compound forming the container body could then flow around the electrodes provided, wherein the plastic molding compound is usually thermally softened to form the container body and due to the elevated temperature of this molding compound the previously mentioned advantageous diffusion processes or fusion processes between the provided plastic Electrodes and the enclosing plastic container body section could use.
  • a holding portion may be formed which one electrode or preferably all electrodes of the electrode assembly without an intermediate arrangement of separately formed sealing means, in particular Sealing rings and the like, fluid-tight surrounds.
  • sealing means in particular Sealing rings and the like
  • the container body and at least one electrode preferably all electrodes, essentially simultaneously or in a short time sequence by a multi-component injection molding process, preferably by a two-component injection molding process.
  • a stable cohesive connection between the at least one electrode made of electrically conductive plastic and the plastic of the container body can be achieved particularly easily, in particular if that for the electrodes and for the container body plastics used are based on the same or at least one compatible polymer base.
  • the electrodes of the electrode device can have any desired cross-sectional shape.
  • the above-described preferred production method (multi-component injection molding method) therefore likewise represents a solution according to the invention of the object on which the present invention is based.
  • FIG. 1 shows a first embodiment of a plastic container of the present invention
  • Fig. 2 shows a second embodiment of a plastic container of the present invention.
  • a first embodiment of a plastic container according to the invention is generally designated 10.
  • the plastic container 10 is a splash water tank for a windscreen washer system of an automobile.
  • the plastic container 10 comprises a container body 12 comprising a lower shell 12a and a sealing shell 12b sealingly connected thereto.
  • the container body 12 has a discharge opening 14 and a filling opening 16. Furthermore, an additional opening 18 is provided, which can be used for example for material and / or pressure equalization.
  • the filling opening 16 is provided with a thread 20 into which a cover, not shown, can be screwed to close the filling opening 16.
  • the remaining openings 14 and 18 are used as hose plug neck 22 or 24 designed.
  • an electrode assembly 28 extends with two electrodes 30 and 32 made of electrically conductive plastic.
  • the electrodes 30 and 32 are formed identically, which is why it is sufficient in the following to describe only the left in Fig. 1 electrode 30 representative of the electrode 32.
  • the electrode 30 extends in a rod-shaped manner along an electrode longitudinal axis ELA.
  • the electrode 30 comprises a detection section 34 which extends from its longitudinal end 30a located in the interior 26 of the container body 12 to slightly beyond the longitudinal center of the electrode 30. Adjoining the latter in the direction of the electrode longitudinal axis ELA is a connecting region 36, along which the electrode 30 is surrounded in a sleeve-like manner by the material of the lower shell 12a of the container body 12.
  • the longitudinal end region 38 which adjoins the connection section 36 in the longitudinal direction of the electrode longitudinal axis ELA and extends up to the longitudinal end 30b of the electrode 30 located outside the container body 12, is designed as a connection section onto which an electrical contact at the end of an electrical line for contacting the electrode 30 is plugged.
  • the electrodes 30 and 32 as well as the lower shell 12a and the upper shell 12b of the container body 12 comprise the same polymer material. This is used only for the container body 12 unfilled and filled for the electrodes 30 and 32 with electrically conductive particles.
  • sleeves 40 formed on the lower shell 12a are materially connected to the electrodes 30 and 32 and thus ensure a good sealing of the lower shell 12a on the
  • the sleeves 40 constitute a previously mentioned holding section of the container body 12.
  • the cohesive connection is produced almost simultaneously lower shell 12a and electrode means 28 produced by a per se known two-component injection molding process. Diffusion processes and / or merging processes on the electrodes 30 and 32, which are still warm after the injection molding process, and sleeves 40 result in the formation of a sealing connecting layer between them.
  • the two-dimensionally applied to the electrodes 30 and 32 sleeves 40 seal the lower shell 12 a against leakage, since the electrodes 30 and 32 and the lower shell 12 a through the use of the same or have at least one compatible thermoplastic polymer material substantially the same or at least very similar material properties, in particular thermal expansion coefficients, so that hardly a sealing endangering relative movements between the electrodes 30 and 32 and the sleeves 40 occurs during thermal load changes.
  • connection sections 38 and 39 of the electrodes 30 and 32 an electrical voltage can be applied to the electrodes 30 and 32 by means of a plug 42, which is not shown in the receptacle body 12, and these then have a different electrical potential.
  • a plug 42 which is not shown in the receptacle body 12
  • the electrical resistance between the electrodes 30 and 32 for example, by measuring the voltage drop between them
  • at least the presence of a minimum filling quantity in the container body 12 can be concluded. If the electrodes 30 and 32 are wetted by electrically conductive liquid, the detected resistance decreases to a finite value.
  • FIG. 2 a second embodiment of the present invention is shown.
  • the same components as in FIG. 1 are denoted by the same reference numerals but increased by the number 100.
  • the embodiment of FIG. 2 differs from that in FIG. 1 substantially by the shape of the electrodes 130 and 132 of the electrode assembly 128.
  • the electrode 130 is angled in FIG.
  • the electrodes 130 and 132 are manufactured together with the lower shell 112a in the two-component injection molding process.
  • the electrode 132 passes through the lower shell 112 a of the container body 112, wherein it is formed as the electrode 130 angled. Its connection section is hidden in FIG. 2 by the connection section 138 of the electrode 130.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

Le récipient en plastique (10) selon l'invention comporte un corps (12) de récipient et un dispositif (28) d'électrode électriquement conducteur, qui est fixé au corps (12) de récipient de telle sorte qu'au moins un tronçon (34) du dispositif (28) d'électrode électriquement conducteur est placé librement à l'intérieur (26) du corps (12) de récipient pour entrer en contact au moyen du matériau contenu ou pouvant être contenu dans le corps (12) de récipient, le dispositif (28) d'électrode électriquement conducteur étant constitué au moins en partie d'un plastique électriquement conducteur.
PCT/EP2007/001037 2006-02-07 2007-02-07 Récipient en plastique avec au moins une électrode en plastique électriquement conducteur WO2007090625A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006005529.2A DE102006005529B4 (de) 2006-02-07 2006-02-07 Kunststoffbehälter mit wenigstens einer Elektrode aus elektrisch leitfähigem Kunststoff
DE102006005529.2 2006-02-07

Publications (1)

Publication Number Publication Date
WO2007090625A1 true WO2007090625A1 (fr) 2007-08-16

Family

ID=37943906

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/001037 WO2007090625A1 (fr) 2006-02-07 2007-02-07 Récipient en plastique avec au moins une électrode en plastique électriquement conducteur

Country Status (2)

Country Link
DE (1) DE102006005529B4 (fr)
WO (1) WO2007090625A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010038121A1 (de) 2010-10-12 2012-04-12 Geiger Automotive Gmbh Kontaktstift
DE202011050650U1 (de) * 2011-07-07 2011-12-06 Geiger Automotive Gmbh Scheibenwaschbehälter, Servoölbehälter und Bremsflüssigkeitsbehälter mit Kontaktfahne und Warnsystem
FR3005942B1 (fr) * 2013-05-27 2015-05-22 Tristone Flowtech Solutions Tfs Reservoir de stockage de fluide du type equipe d'un dispositif de detection de niveau de remplissage dudit reservoir
GB201409066D0 (en) * 2014-05-21 2014-07-02 Castrol Ltd Fluid system
DE102015200691A1 (de) 2015-01-19 2016-07-21 Röchling Automotive SE & Co. KG Behälter
DE102015205065A1 (de) 2015-03-20 2016-09-22 Mahle International Gmbh Kraftstofffilter
GB201516854D0 (en) 2015-09-23 2015-11-04 Castrol Ltd Fluid system
DE202016106741U1 (de) 2016-12-02 2017-01-02 Geiger Automotive Gmbh Kontaktstift
DE102016225398A1 (de) * 2016-12-19 2018-06-21 Röchling Automotive SE & Co. KG Betriebsmittel-Bevorratungsanlage mit Identifikation des betroffenen Vorratsbehälters im Falle eines Befüllbedarfs
DE102017221255A1 (de) 2017-11-28 2019-05-29 Robert Bosch Gmbh Füllstandsmeßanordnung
DE102018203633A1 (de) 2018-03-09 2019-09-12 Kautex Textron Gmbh & Co. Kg Betriebsflüssigkeitsbehälter mit kapazitiver Erfassung von Füllständen
DE102018115122B4 (de) 2018-06-22 2021-07-08 Geiger Automotive Gmbh Kontaktstiftabdichtung mit thermoplastischem Elastomer
DE102021101055A1 (de) 2021-01-19 2022-07-21 Röchling Automotive Se & Co.Kg Extrudierter Fluidsensor zur impedanzbasierten Erfassung einer Menge oder einer Qualität eines den Sensor umgebenden Fluids
DE102022209515A1 (de) 2022-09-12 2024-03-14 Knipping Kunststofftechnik Gessmann Gmbh Füllstandmesssensor

Citations (7)

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Publication number Priority date Publication date Assignee Title
DE2549258A1 (de) * 1975-11-04 1977-05-05 Volkswagenwerk Ag Vorrichtung zur fuellstandskontrolle eines kraftfahrzeug-brennstoffbehaelters
DE8700406U1 (fr) * 1986-12-16 1987-03-19 Roeckert, Leo, 8501 Schwarzenbruck, De
EP0399686A1 (fr) * 1989-05-25 1990-11-28 Fuji Jukogyo Kabushiki Kaisha Palpeur de niveau d'huile à résistance électrique pour moteur à combustion interne
EP0399824A2 (fr) * 1989-05-25 1990-11-28 Fuji Jukogyo Kabushiki Kaisha Capteur électrique du niveau d'un liquide pour moteurs à combustion interne
WO1996011385A1 (fr) * 1994-10-06 1996-04-18 Videojet Systems International, Inc. Capteur de niveau de liquide destine a des imprimantes a jet d'encre
US5626053A (en) * 1993-11-24 1997-05-06 Rochester Gauges, Inc. Floatless gauge with resistive/conductive polymer
EP0962751A2 (fr) * 1998-06-04 1999-12-08 Illinois Tool Works Inc. Mesure résistive du niveau d'un liquide et système de cÔntrole

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DE3736576A1 (de) * 1987-10-28 1989-05-11 Manfred Hilleberg Kunststoffelektrode
DE9418071U1 (de) * 1994-11-11 1995-02-09 Kunststoffwerk Kutterer Gmbh Kunststoffbehälter
DE29824096U1 (de) * 1998-04-06 2000-04-20 Protechna Sa Transport- und Lagerbehälter für Flüssigkeiten

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2549258A1 (de) * 1975-11-04 1977-05-05 Volkswagenwerk Ag Vorrichtung zur fuellstandskontrolle eines kraftfahrzeug-brennstoffbehaelters
DE8700406U1 (fr) * 1986-12-16 1987-03-19 Roeckert, Leo, 8501 Schwarzenbruck, De
EP0399686A1 (fr) * 1989-05-25 1990-11-28 Fuji Jukogyo Kabushiki Kaisha Palpeur de niveau d'huile à résistance électrique pour moteur à combustion interne
EP0399824A2 (fr) * 1989-05-25 1990-11-28 Fuji Jukogyo Kabushiki Kaisha Capteur électrique du niveau d'un liquide pour moteurs à combustion interne
US5626053A (en) * 1993-11-24 1997-05-06 Rochester Gauges, Inc. Floatless gauge with resistive/conductive polymer
WO1996011385A1 (fr) * 1994-10-06 1996-04-18 Videojet Systems International, Inc. Capteur de niveau de liquide destine a des imprimantes a jet d'encre
EP0962751A2 (fr) * 1998-06-04 1999-12-08 Illinois Tool Works Inc. Mesure résistive du niveau d'un liquide et système de cÔntrole

Also Published As

Publication number Publication date
DE102006005529B4 (de) 2016-02-11
DE102006005529A1 (de) 2007-08-16

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