EP1834342A1 - Dispositif d'insertion d'un cable d'alimentation electrique - Google Patents

Dispositif d'insertion d'un cable d'alimentation electrique

Info

Publication number
EP1834342A1
EP1834342A1 EP05815797A EP05815797A EP1834342A1 EP 1834342 A1 EP1834342 A1 EP 1834342A1 EP 05815797 A EP05815797 A EP 05815797A EP 05815797 A EP05815797 A EP 05815797A EP 1834342 A1 EP1834342 A1 EP 1834342A1
Authority
EP
European Patent Office
Prior art keywords
sealing body
cylinder sectors
opening
cylinder
sectors
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Withdrawn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
EP05815797A
Other languages
German (de)
English (en)
Inventor
Helmut Weyl
Rainer Maier
Juergen Wilde
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1834342A1 publication Critical patent/EP1834342A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/013—Sealing means for cable inlets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/30—Sealing
    • H01B17/303—Sealing of leads to lead-through insulators
    • H01B17/308—Sealing of leads to lead-through insulators by compressing packing material
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H02G15/04—Cable-end sealings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2205/00—Application of thermometers in motors, e.g. of a vehicle
    • G01K2205/04—Application of thermometers in motors, e.g. of a vehicle for measuring exhaust gas temperature

Definitions

  • the invention is based on a device for conducting electrical connection cables through an opening, in particular a housing opening in a sensor housing of a gas sensor, according to the preamble of claim 1.
  • Gas component in an exhaust gas (DE 101 51 291 Al) is the sensor element receiving a sensor housing at its end remote from the measurement gas end gas-tight manner with a cable bushing, through which the electrical connection cable are passed.
  • the stripped ends of the connection cables are connected via crimp connections to contact parts of a connection plug, which are connected to the
  • the grommet consists of a silicone rubber stopper or a temperature-resistant fluoroelastomer such as Viton, which has through channels for the insulated connection cables and also receives the crimp connections to the contact parts of the connector.
  • the plug made of silicone rubber is pressed in the housing and thus fixed axially immovable in the housing opening.
  • the gasket inserted in the measuring gas-remote housing opening has a plastic which points into the interior of the housing first sealing body and an outwardly facing second sealing body.
  • the outwardly facing sealing body of a fluoroelastomer has a higher elasticity, as the fitting to this, inwardly facing sealing body, the
  • PTFE exists.
  • the crimp connections which connect the connection cables with contact parts of a connection plug for the sensor element are partially arranged in the passage channels of the inwardly pointing sealing body. After caulking the two seal body in the housing enclose the seal body tightly seal the cable insulation of the connection cables and anchor the crimp connections in the through channels.
  • the inventive device for passing electrical connection cable through an opening, also called cable feedthrough, with the features of claim 1 has the advantage that by the composition of a sealing body of a plurality of circular sector cylinder sectors that form the passage channels in the radial assembly, the connection cable in the duct sections forming between the cylinder sectors are positively and / or positively clamped, so that a reliable cable pull-out protection is obtained, which keeps any tensile force away from the electrical connection points, the so-called crimping points, at the end of the connection cable.
  • the sealing body need not be made of elastic or plastically deformable material in order to produce a gas-tight positive connection to the connecting cables by caulking the wall delimiting the opening.
  • the sealing of the cable gland on the wall surrounding the opening and a further seal on the connecting cables is then achieved by caulking the second sealing body.
  • the two sealing bodies are inserted into the housing opening in such a way that the sealing body composed of the cylinder sectors always faces the area with the higher temperature load. In this case, the two sealing bodies can both lie against each other and be arranged at an axial distance from each other.
  • the existing between the cylinder sectors of the sealing body frictional connection is caused by acting on the cylinder sectors radial forces and this one the opening.
  • the two sealing bodies are axially adjacent to each other, and the retaining ring is formed by a peripheral to the other sealing body preferably integrally formed circumferential collar which engages over the cylinder sectors outside.
  • the retaining ring is formed by a peripheral to the other sealing body preferably integrally formed circumferential collar which engages over the cylinder sectors outside.
  • Cylinder sectors aligned groove sections formed after assembly of the cylinder sectors outside of the seal body circumferential groove into which the collar engages the other seal body with an end, preferably integrally formed annular web.
  • each cylinder sector at its remote from each other, radially extending side surfaces on an axial groove with a semicircular cross-section, which are arranged so that the axial grooves of adjacent cylinder sectors lie on one another to form a through-channel.
  • Each axial groove has a larger cross-section groove portion, which runs freely on the side facing away from the other sealing body end face of the sealing body, and a smaller cross-section groove portion of the other sealing body facing the end face of the seal body expires and the groove radius of the radius
  • Passages in the other seal body corresponds.
  • the larger diameter channel sections formed by the cross-sectional larger groove sections serve to receive the crimp connections, via which the electrical connecting cables are connected to contact parts of a connector plug.
  • FIG. 1 shows a detail of a longitudinal section of a gas sensor with a arranged in a Gesimouseöffiiung cable gland
  • FIG. 1 is a perspective view of the cable gland in Fig. 1,
  • FIG. 3 is an exploded view of the cable gland in Fig. 2,
  • Fig. 4 is a side view of a cylinder sector of the cable duct in
  • FIG. 5 is a perspective view of the rear in Fig. 2 sealing body of the grommet
  • FIG. 6 shows a longitudinal section of the sealing body in FIG. 5.
  • the gas sensor shown in Fig. 1 with its measuring gas remote end is used to determine the oxygen concentration in the exhaust gas of an internal combustion engine in motor vehicles. He has in a known manner, a sensor element 11 which in a
  • Sensor housing 12 is received and protrudes with a measuring gas side end portion of the housing 12 and is exposed to the measuring gas.
  • connection-side end portion 111 of the sensor element 11 contact surfaces are arranged, which are contacted via a connector 13 of connecting cables 14 of an electrical connection line 15.
  • the connecting plug 13 has contact sub-carriers 16, which respectively carry contact parts 17 and are pressed onto the connection-side end section 111 of the sensor element 11 by means of a spring bushing 18 in such a way that the contact parts 17 rest positively on the contact surfaces of the sensor element 11.
  • the contact parts 17 are electrically and mechanically connected via crimp connections 19, each having a stripped end of a connection cable 14.
  • connection-side end portion 111 of the sensor element 11 with connection plug 13 is received in a protective sleeve forming, measuring gas remote end portion of the sensor housing 12, which is reduced in its end to a smaller inner diameter with a housing opening 20.
  • a Cable bushing 21 is used, the gas-tight through the Gephaseöffiiung 20 passes through the connection cable 14 and at the same time offers a pull-out protection against mechanical removal of the connection cable 14.
  • the grommet 21 is fixed axially immovable in the housing opening 20 and seals it gas-tight.
  • the cable gland 21 outlined in exploded view in FIG. 2 and in exploded view in FIG. 3 has two sealing bodies 22, 23 which are provided with passage channels 24, 25 for receiving insulated cable sections of the connection cables 14.
  • each sealing body 22, 23 five through channels 24 and 25 are provided, which are arranged offset on a pitch circle by equal circumferential angle to each other.
  • the front in Fig. 2 and 3 sealing body 22, which is closer in Fig. 1 to the connector 13 on the sensor element 11, consists of five identical circular sector-shaped cylinder sectors 26 which are radially assembled and the outside of a retaining ring 27 are enclosed, over which the cylinder sectors 26 are compressed radially.
  • the composite cylindrical sectors 26 eliminate a central axial opening 35, into which a radially expanding clamping sleeve 28 (FIG. 2) can be inserted, which causes an additional tensioning of the cylinder sectors 26.
  • the axial opening 35 can also be used to carry out an additional connecting cable 14, if in the other sealing body 23 also such a central
  • Each cylinder sector 26 is provided on its remote, radially extending side surfaces with a semi-circular cross-section having axial groove 28 which lies on the pitch circle of the passageways 22, so that the axial grooves
  • each axial groove 29 has a cross-sectionally larger groove portion 291 and a smaller-diameter groove portion 292 extending thereon.
  • the larger cross-section groove portion 291 opens on the side facing away from the sealing body 23 end face of the seal body 22 and the cylinder sector 26 and the smaller cross section groove portion 292 on the sealing body 23 facing side of the seal body 22 and the cylinder sector 26.
  • the clear radius of the smaller cross section groove portion 292 corresponds to Radius of the passageways 25 in the sealing body 23, so that in adjacent sealing bodies 22, 23 and aligned passage channels 24, 25 of the cross-section smaller Groove portions 292 formed channel sections of the passageways 24 continuously in the passageways 25 in the seal body 23 pass.
  • cylindrical sectors 26 of the seal body 22 cohesive retaining ring 27 is a to the sealing body
  • the cylinder sectors 26 are made of a ceramic material, for example aluminum oxide (Al 2 O 3 ), or of PTFE or PEK and the sealing body 23 made of a temperature-resistant silicone rubber or a fluoroelastomer, for example Viton from Dupont.
  • the cable feedthrough 21 is inserted into the housing opening 20, as shown in FIG. 1, in such a way that the sealing body 22 points into the housing interior or rotated through 180 ° so that the sealing body 23 points into the housing interior , In any case, the composite of the cylinder sectors 26 seal body 22 is always on the
  • Cylinder sectors 26 are held together by a separate retaining ring 27.
  • a molding tube 33 which surrounds the connecting line 15 as a whole.
  • the molding tube 33 is provided with a Tensioning member 34 is pressed onto the housing portion, wherein the clamping member 34 is simultaneously used to compress the sealing body 23 in the housing section, so that it is pressed against both the connection cable 14 and against the housing inner wall and thus the Gescouseöfmung 20 gas-tight manner.
  • the molding tube 33 may also be omitted. In this case, the
  • Sealing body 23 is pressed in the same manner by a caulking introduced into the housing section enclosing the sealing body 23 of the sensor housing 12.
  • the frictional connection between the cylindrical sectors 26 of the sealing body 22 is produced by caulking the sensor housing 12 in the region of the collar 30 on the sealing body 23, whereby over the collar 30 radial forces on the
  • Cylinder sectors 26 act and compress the cylinder sectors 26. As a result, the radial gaps existing between the cylinder sectors 26 are reduced at the preassembled sealing body 22 so that the cylinder sectors 26 press with the groove walls of their grooves 29 onto the connection conductors 14, which are passed through the composite of the grooves 29 through channels 24. This leads to a high level of security against pulling out the connection conductors 14, so that any tensile force is prevented from the electrical connection points of the connection conductors 14 with the contact surfaces of the sensor element 11. If instead of the collar 30, a separate retaining ring 27 is used for the radial clamping of the cylinder sectors 26 of the Dichtungskröpers 22, this can be caulked in the same way.
  • the invention can equally advantageously be used with gas sensors, e.g. detect as nitrogen oxide probes, the concentration of nitrogen oxides in the exhaust gas of internal combustion engines or internal combustion engines or are designed as a temperature meter for detecting the exhaust gas temperature.
  • gas sensors e.g. detect as nitrogen oxide probes, the concentration of nitrogen oxides in the exhaust gas of internal combustion engines or internal combustion engines or are designed as a temperature meter for detecting the exhaust gas temperature.

Abstract

L'invention concerne un dispositif d'insertion d'un câble d'alimentation électrique permettant de le faire passer par un orifice, notamment un orifice d'un boîtier d'un capteur de gaz de mesure. Ce dispositif d'insertion présente deux corps d'étanchéité (22, 23) successifs pouvant être insérés dans l'orifice et ayant respectivement des canaux de passage (24, 25) notamment en alignement mutuel et dans lesquels repose par liaison de forme et/ou de force respectivement une section d'un câble d'alimentation. Pour obtenir un système de protection fiable empêchant le retrait du câble et une meilleure résistance aux températures élevées aux points à température critique de l'orifice, un corps d'étanchéité (22) est radialement composé d'un certain nombre de secteurs cylindres (26) qui sont en forme de secteurs de cercle, forment entre eux les canaux de passage (24) et sont maintenus ensemble par liaison de force à l'aide d'une bague support (27) enfilée à l'extérieur.
EP05815797A 2004-12-28 2005-12-07 Dispositif d'insertion d'un cable d'alimentation electrique Withdrawn EP1834342A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410063083 DE102004063083B4 (de) 2004-12-28 2004-12-28 Vorrichtung zur Durchführung elektrischer Anschlusskabel
PCT/EP2005/056573 WO2006069900A1 (fr) 2004-12-28 2005-12-07 Dispositif d'insertion d'un cable d'alimentation electrique

Publications (1)

Publication Number Publication Date
EP1834342A1 true EP1834342A1 (fr) 2007-09-19

Family

ID=35717454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05815797A Withdrawn EP1834342A1 (fr) 2004-12-28 2005-12-07 Dispositif d'insertion d'un cable d'alimentation electrique

Country Status (4)

Country Link
EP (1) EP1834342A1 (fr)
CN (1) CN101095202B (fr)
DE (1) DE102004063083B4 (fr)
WO (1) WO2006069900A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2409998B1 (fr) 2010-07-23 2015-11-25 3M Innovative Properties Company Polymères PTFE à point de fusion élevé pour un traitement par fusion pour obtenir des articles formés
DE102011082260A1 (de) * 2011-09-07 2013-05-08 Robert Bosch Gmbh Messfühler zur Bestimmung mindestens einer Eigenschaft eines Messgases in einem Messgasraum
FR2988172B1 (fr) * 2012-03-19 2014-12-26 Sc2N Sa Capteur de temperature
DE102015112287A1 (de) * 2015-07-28 2017-02-02 R. Stahl Schaltgeräte GmbH Explosionsgeschützte Anordnung und Verfahren zu deren Herstellung
JP6458710B2 (ja) * 2015-11-12 2019-01-30 株式会社オートネットワーク技術研究所 ケーブルのシール構造、及びシール部材
WO2019217615A2 (fr) 2018-05-09 2019-11-14 Afl Telecommunications Llc Fermetures bord à bord et bases associées
US10996414B1 (en) 2020-03-23 2021-05-04 Afl Telecommunications Llc Butt closures and bases therefor
DE102020112112A1 (de) 2020-05-05 2021-11-11 Thermo Sensor Gmbh Temperatursensor und Herstellungsverfahren hierfür

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Publication number Priority date Publication date Assignee Title
GB2058988A (en) * 1979-09-13 1981-04-15 Teleflex Morse Ltd Grommets
DE9410070U1 (de) * 1994-06-22 1995-10-19 Bosch Gmbh Robert Kabeldurchführung für Anschlußkabel eines Sensorelements
DE19742022A1 (de) * 1997-09-24 1999-03-25 Hilti Ag Spreizdübel
US6500322B2 (en) * 1999-12-06 2002-12-31 Ngk Spark Plug Co., Ltd. Gas sensor
DE10151291B4 (de) * 2000-11-14 2006-08-17 Robert Bosch Gmbh Gassensor
CN1481291A (zh) * 2000-12-15 2004-03-10 Pem管理股份有限公司 具有间隔开功能的弹性夹持装置
US7241370B2 (en) * 2002-08-20 2007-07-10 Ngk Spark Plug Co., Ltd. Protective covers for gas sensor, gas sensor and gas sensor manufacturing method

Non-Patent Citations (1)

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Title
See references of WO2006069900A1 *

Also Published As

Publication number Publication date
CN101095202A (zh) 2007-12-26
DE102004063083B4 (de) 2014-10-30
WO2006069900A1 (fr) 2006-07-06
DE102004063083A1 (de) 2006-07-06
CN101095202B (zh) 2011-05-25

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