WO2019110175A1 - Dispositif de connexion servant à connecter au moins une ligne de détection à une ligne de connexion électrique - Google Patents

Dispositif de connexion servant à connecter au moins une ligne de détection à une ligne de connexion électrique Download PDF

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Publication number
WO2019110175A1
WO2019110175A1 PCT/EP2018/078117 EP2018078117W WO2019110175A1 WO 2019110175 A1 WO2019110175 A1 WO 2019110175A1 EP 2018078117 W EP2018078117 W EP 2018078117W WO 2019110175 A1 WO2019110175 A1 WO 2019110175A1
Authority
WO
WIPO (PCT)
Prior art keywords
spout
sleeve
constriction
line
connecting device
Prior art date
Application number
PCT/EP2018/078117
Other languages
German (de)
English (en)
Inventor
Stefan Leopold
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
Priority to CN201880078893.8A priority Critical patent/CN111433980A/zh
Publication of WO2019110175A1 publication Critical patent/WO2019110175A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/70—Insulation of connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • H01R13/5208—Sealing means between cable and housing, e.g. grommet having at least two cable receiving openings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure

Definitions

  • Connection device for connecting at least one sensor line to an electrical connection line
  • the invention relates to a connection device for connecting at least one sensor line to an electrical connection line according to the preamble of claim 1.
  • Internal combustion engines usually comprise one or more temperature sensors for detecting current operating temperatures, for example in the region of an exhaust system of an internal combustion engine.
  • the sensors and the associated sensor lines which transmit the sensor signals, are exposed to many environmental influences, in particular relatively high temperatures, considerable vibrations and also moisture.
  • the sensor lines are electrically coupled via a coupling section with connecting lines, which forward the sensor signals to corresponding electronic devices.
  • Object of the present invention is to provide a connecting device of the type mentioned, which protects the coupling section even better against environmental influences and has a long life.
  • the connecting device serves to connect at least one sensor line to an electrical connecting line. It comprises a plastically deformable sleeve, which, for example, in the not yet finally assembled state, for example, is still essentially straight and has an outer and inner diameter that is constant at least in sections in the axial direction.
  • An elastically deformable grommet is arranged within the sleeve, wherein the grommet comprises at least one passage opening for receiving a coupling section, which electrically couples the line ends of the sensor line and the connecting line to one another.
  • the passage opening has at least one radially preferably radially encircling and with respect to the passage opening radially inwardly directed first constriction.
  • grommet is not to be understood as limiting. Rather, this is understood herein to mean any, for example, a generally cylindrical part in which the coupling portion is at least partially received.
  • This constriction serves to be applied to at least one of these elements with increased force when introduced into the passage opening coupling section or inserted sensor line or connecting cable and thereby provide an increased seal against both moisture and gases.
  • a defined tightness in the range of 10 2 to 10 6 can be achieved, and this over a desired typical temperature range, a predetermined number of temperature changes and / or a predetermined period of time.
  • a capillary barrier is created by the geometry.
  • the nozzle not only a holding but also a sealing function relative to the sensor line, the
  • the grommet is particularly thermally designed so that there is no critical tension on the sensor line, the connecting line or the spout in the coupling section.
  • the first constriction forms a sealing lip which is designed to cooperate with an outer side of the sensor line or the connecting line.
  • a sealing lip is shaped such that it presses or digs in, for example, into an insulating material of the sensor line and / or the connection line locally to a certain (small) depth, so that an increased surface pressure and thus an improved sealing effect is provided.
  • the sealing lip can preferably have a cross section which forms a narrow sealing edge, which produces a nearly linear contact between the sealing lip and the sensor line, the connection line and / or the coupling section. Overall, the sealing effect is improved by such a sealing lip.
  • the passage opening has at least two constrictions forming preferably directly adjacent first and respective sealing lips.
  • the sealing effect is further improved.
  • this additionally creates a relatively bending moment stable storage.
  • the passage opening has at least one second constriction arranged at a distance from the first constriction or the first constrictions and preferably revolving.
  • a second constriction serves as a guide, holding and / or stabilizing lip, through which in particular the connecting line and / or the sensor line to the
  • Coupling section is guided in a certain way. This prevents or at least minimizes the risk that bending of the sensor line and / or connecting line possibly immediately outside the connecting device will result in undesired deformation or movement of the respective line in the region which is sealed by the above-mentioned sealing constriction (s) ,
  • circumferential and with respect to the outside radially inwardly directed third constriction may be formed in the nature of circumferential grooves. Through them, a certain mobility of the grommet within the sleeve is provided thermally. This is especially true if the spout at least two third
  • circumferential bead which is preferably adjacent to an axial end of the spout. This bead provides at certain
  • the spout is preferably made of an elastomeric material and / or the sleeve is preferably made of a metal material. These materials provide the desired elasticity and plasticity well.
  • Coupling section comprises a coupling sleeve.
  • the spout may have a substantially circular outer contour and the sleeve may have a substantially annular cross-section. This ensures an inexpensive manufacturability and processability.
  • Outer diameter of the spout and, correspondingly, the inner diameter of the sleeve (into which the spout is inserted with little play or even press fit) are chosen so that the example annular constricting plastic deformation of the sleeve through the spout to the sensor line, the
  • FIG. 1 shows a schematic section through a connecting device with a sleeve, a nozzle, two sensor lines, a coupling section, and two connecting lines;
  • Figure 2 a schematic section through the spout of Figure 1 before her
  • a connecting device as a whole bears the reference numeral 10. It serves for the connection of, for example, two sensor lines 12 with corresponding connection lines 14.
  • the sensor lines 12 belong to a temperature sensor 16, which may comprise, for example, a thermocouple.
  • the temperature sensor 16 may be arranged, for example, in an exhaust system of an internal combustion engine of a motor vehicle, in a battery area of an electric drive of an electrically driven motor vehicle, or in a similar area. In any case, it serves to detect a temperature which is preferably used for controlling and monitoring a drive of a motor vehicle.
  • the signals of the temperature sensor 16 are first transmitted via the sensor lines 12 to the connection lines 14. These lead the
  • Sensor signals for example, to a signal converter or directly to an input of an exemplary and only schematically drawn in Figure 1 electronic device 18, which may be, for example, a motor or battery control device.
  • connection lines 14 The actual electrical and mechanical connection of the sensor lines 12 to the connection lines 14 via respective coupling portions 20, for example in the form of metallic sleeves, which are hereinafter referred to as coupling sleeves. These can either be stuck with the coupling sleeves 20
  • both types of lines can be connected to the coupling sleeve 20 by a plug.
  • the sensor lines 12 are usually relatively short. This causes the
  • Coupling sleeves 20 are arranged relatively close to the temperature sensor 16 and thus also relatively close to the environment in which the temperature sensor 16 is located. At the point at which the temperature sensor 16 is arranged, however, there are sometimes environmental conditions that a permanent and reliable electrical connection of the connecting lines 14 and the Sensor lines 12 with the coupling portions 20 may be detrimental. These environmental conditions can be, for example, high temperatures, strong
  • connection device 10 In order to protect the coupling sleeves 20 and their connections with the sensor lines 12 and the connection lines 14 from such environmental influences, the connection device 10 mentioned above is provided, which will now be explained in greater detail.
  • the connecting device 10 comprises an outer sleeve 22 having an overall substantially circular cross-section and a grommet 24 received within the sleeve 22.
  • the term "grommet" is not to be understood as limiting. Rather, this is understood herein to mean any, for example, a total cylindrical part in which the coupling sections or here specifically the coupling sleeves 20 are at least partially included.
  • the sleeve and the spout may also have other cross-sectional shapes, such as polygonal cross-sectional shapes.
  • the outer sleeve 22 may for example be made of a plastically deformable material, for example of a metal material.
  • the spout 24 in turn may be made of an elastically deformable material, for example of an elastomeric material such as rubber or the like.
  • the grommet 24 is shorter in the axial direction than the sleeve 22.
  • a holding insert 26 is fixed in the sleeve 22, which holds or fixes the sensor lines 12. so that these zugentlastet can get to the coupling sleeves 20.
  • the holding insert 26 may also be formed by the sheath of a so-called "MIL cable" under certain circumstances.
  • MIL cable so-called "MIL cable"
  • Connecting lines 14 each comprise a metallic and electrically conductive core 28 and at least outside of the coupling sleeves 20 an arranged around this insulation 30, for example, of a plastic material.
  • an end sleeve 32 is further used in the right end portion of the outer sleeve 22 in the right end portion of the outer sleeve 22.
  • the corresponding plastically deformed sections carry the reference numerals 34 and 36 in FIG. 1.
  • the plastic deformation 34 is located relatively centrally relative to the sleeve 22 in the axial direction, whereas the plastic deformation 36 is located at the right edge of the sleeve 22.
  • the plastic deformations 34 and 36 can in
  • Circumferentially circumferential may also comprise only single and preferably mutually oppositely arranged deformed singular sections.
  • Deformation characterized by the spout 24 is deformed radially inwardly and is intervened by the in a corresponding recess 32 of the end sleeve. It is understood that in another embodiment, not shown, a different number and also other forms of plastic deformation of the outer sleeve can be selected, which connect the outer sleeve captive with the spout, and which exert a radial pressure on the spout, which transmits up to the passage openings and from there further to the coupling sections or the sensor lines or the connection lines.
  • the spout 24 is shown in Figure 2 when not installed. It is presently exemplary as elongated and overall in essence
  • the passage opening 38 has an inner diameter which is approximately equal to the outer diameter of the
  • Connecting line 14 and the outer diameter of the coupling sleeve 20 corresponds, optionally with a small clearance to the insertion of the Connecting line 14 and the coupling sleeve 20 in the passage opening 38 to facilitate.
  • the through-opening 38 has a first constriction 40a that circulates in the circumferential direction in the circumferential direction and is radially inwardly directed with respect to the through-opening 38, and a further constriction 40b arranged adjacent thereto and further radially inwardly directed first constriction 40b with respect to the through-opening 38.
  • the two first constrictions 40a and 40b are formed as sealing lips, which in the installed state shown in Figure 1 in the outside of the insulation 30 of the connecting lines 14 very easily press, thereby increasing locally at this point
  • sealing lips 40 a and 40 b are designed to be connected to the outside of the connecting line 14
  • the first constrictions 40a and 40b provide a seal against, for example, against ingress of moisture and for improved damping or decoupling of the connection line 14 from vibrations. It is understood that in other, not shown embodiments, only a first constriction or more than two first constrictions may be present to provide additional sealing points. Also, the cross section of the sealing lips may be different than drawn in Figure 2.
  • the passage opening 38 in the region of its right-hand end in FIG. 2 has a second constriction 42, which in turn preferably revolves in the circumferential direction and points radially inward. This forms a present
  • Stabilization, guiding and retaining lip through which the connecting line 14 to the coupling sleeve 20 or at least to the first constrictions 40a and 40b is guided and held in a certain way. This prevents or at least reduces the possibility that bending of the connection line 14 (possibly exemplarily illustrated in FIG. 1) possibly immediately outside the connection device 10 will lead to undesired deformation or movement of the connection line 14 in that region which seals by the abovementioned sealing first constrictions 40a and 40b is sealed.
  • such a stabilization, guiding and retaining lip may also be present at a different axial position of the through hole, for example, at the other end, and it may optionally also several, for example, directly adjacent to each other stabilization , Guide and retaining lips be provided. Also, the cross section of the stabilization, guiding and retaining lip may be different than drawn in Figure 2.
  • a per se substantially circular cylindrical outer side 43 of the spout 24 also has two preferably circumferential in the circumferential direction and with respect to the outside 43 radially inwardly directed constrictions, which are referred to as third constrictions and the
  • Bear reference numerals 44a and 44b As seen in the axial direction of the spout 24, the third constriction 44a is to the left of the first left in FIG
  • Constriction 40 a arranged, and the other third constriction 44 b is arranged in Figure 2 right of the right in Figure 2 first constriction 40 b.
  • the two third constrictions 44a and 44b are so far formed in the manner of circumferential grooves, wherein the cross-sectional shape of these grooves is formed so that a continuous transition from the outer side 43 of the spout 24 is provided to the third constrictions 44a and 44b, and wherein the third constrictions 44a and 44b have in them a continuous continuous cross-sectional profile without edges or diameter jumps or the like.
  • the third constrictions 44a and 44b have in them a continuous continuous cross-sectional profile without edges or diameter jumps or the like.
  • other cross-sectional characteristics are conceivable, if this is favorable for the specific application.
  • the third constrictions 44a and 44b may also be referred to as
  • Connection device 10 thus do not lead or at least not to a significant extent to a reduction of the seal and / or the
  • Constrictions may be present, and that they may also be present at other axial locations on the outside of the spout to other places a certain flexibility to compensate for thermal
  • circumferentially circumferential bead 46 is present.
  • This bead 46 forms an outer retaining lip, which, like the third constrictions 44a and 44b and the existing in the through holes 38 first constrictions 40a and 40b and the second constriction 42, also has a cross-sectional shape which extends continuously from the outer side 43 and has no discontinuities caused by diameter jumps.
  • This bead 46 provides additional hold function for certain special applications. It is understood that in other, not shown embodiments of the spout at other locations on the outside of such beads may be present to provide a corresponding additional holding function there. It is also understood that in other embodiments, a different cross section for the bead can be selected.
  • the grommet 24 is preferably designed so that it is possible over the entire occurring during operation frequency range of vibrations
  • the coupling portions 20 holds the coupling portions 20 in the desired position, this protects against the vibrations occurring, so the vibrations occurring only attenuated transmits to the coupling portions 20, and thus no or at least allows no significant relative movements. Such relative movements could for example be limited to a maximum of 30 pm.
  • the spout 24 is preferably thermally designed so that there is no critical tension in the region of the coupling portions 20 on the
  • Outer diameter of the spout 24 is selected relative to the positions and diameters of the through holes 38 so that the central plastic deformation 34 through the material of the spout 24 passes through to the through holes 38 and there for an additional radial compression of the spout 24 on the coupling portions 20 and / or the sensor lines 12 and / or the Leads 14 leads.
  • the first constrictions described above are preferably designed so that at the end, ie in the installed state, a defined tightness is achieved, which may for example be in the range between 10 2 - 10 6 , the corresponding value of the actual design of the spout 24 and / or the outer sleeve 22 depends, and wherein the corresponding value over a certain temperature range and also over a certain time (time duration and number of temperature changes) should be met. Due to the geometry described above, a so-called "capillary barrier" is also generated.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

L'invention concerne un dispositif de connexion servant à connecter au moins une ligne de détection à une ligne de connexion électrique. Il comprend une douille de préférence déformable plastiquement, à l'intérieur de laquelle est disposé un passe-câble (24), ce dernier étant déformable élastiquement et comprenant au moins une ouverture de passage (38) destinée à recevoir une partie de couplage connectant électriquement des extrémités de la ligne de détection et de la ligne de connexion les unes aux autres. Selon l'invention, l'ouverture de passage (38) présente au moins un premier rétrécissement (40a, 40b) s'étendant de préférence dans la direction périphérique et orienté radialement vers l'intérieur par rapport à l'ouverture de passage (38).
PCT/EP2018/078117 2017-12-06 2018-10-15 Dispositif de connexion servant à connecter au moins une ligne de détection à une ligne de connexion électrique WO2019110175A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880078893.8A CN111433980A (zh) 2017-12-06 2018-10-15 用于连接至少一个传感器导线与电连接导线的连接装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017222007.4 2017-12-06
DE102017222007.4A DE102017222007A1 (de) 2017-12-06 2017-12-06 Verbindungseinrichtung zur Verbindung von mindestens einer Sensorleitung mit einer elektrischen Anschlussleitung

Publications (1)

Publication Number Publication Date
WO2019110175A1 true WO2019110175A1 (fr) 2019-06-13

Family

ID=63896146

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/078117 WO2019110175A1 (fr) 2017-12-06 2018-10-15 Dispositif de connexion servant à connecter au moins une ligne de détection à une ligne de connexion électrique

Country Status (3)

Country Link
CN (1) CN111433980A (fr)
DE (1) DE102017222007A1 (fr)
WO (1) WO2019110175A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334974A (en) * 1979-02-23 1982-06-15 Robert Bosch Gmbh Electrochemical oxygen sensor, particularly for use with exhaust gases of internal combustion engines, and especially for polarographic application
EP0704697A1 (fr) * 1994-09-27 1996-04-03 General Motors Corporation Sonde d'analyse de gaz d'échappement avec un tube céramique dans un tube d'enveloppement métallique
DE19703458A1 (de) * 1996-01-30 1997-07-31 Denso Corp Luftkraftstoffverhältnissensor und Verfahren zu dessen Zusammenbau
DE102012201904A1 (de) * 2012-02-09 2013-08-14 Robert Bosch Gmbh Abgassensor
EP2778638A2 (fr) * 2007-06-22 2014-09-17 Watlow Electric Manufacturing Company Ensemble de capteur de température et son procédé de fabrication

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3266750B2 (ja) * 1994-09-16 2002-03-18 矢崎総業株式会社 シールドコネクタの絶縁構造
JP4678288B2 (ja) * 2005-11-24 2011-04-27 住友電装株式会社 ゴム栓および防水コネクタ
DE102006043012A1 (de) * 2006-09-13 2008-03-27 Robert Bosch Gmbh Vorrichtung mit einer steckerlosen elektrischen Verbindung mit Zugentlastung
JP5908426B2 (ja) * 2013-03-29 2016-04-26 日本碍子株式会社 ガスセンサー

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334974A (en) * 1979-02-23 1982-06-15 Robert Bosch Gmbh Electrochemical oxygen sensor, particularly for use with exhaust gases of internal combustion engines, and especially for polarographic application
EP0704697A1 (fr) * 1994-09-27 1996-04-03 General Motors Corporation Sonde d'analyse de gaz d'échappement avec un tube céramique dans un tube d'enveloppement métallique
DE19703458A1 (de) * 1996-01-30 1997-07-31 Denso Corp Luftkraftstoffverhältnissensor und Verfahren zu dessen Zusammenbau
EP2778638A2 (fr) * 2007-06-22 2014-09-17 Watlow Electric Manufacturing Company Ensemble de capteur de température et son procédé de fabrication
DE102012201904A1 (de) * 2012-02-09 2013-08-14 Robert Bosch Gmbh Abgassensor

Also Published As

Publication number Publication date
DE102017222007A1 (de) 2019-06-06
CN111433980A (zh) 2020-07-17

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