EP1251594A2 - Connecteur pour une sonde lambda linéaire avec un verrouillage secondaire ayant une fonction de control - Google Patents

Connecteur pour une sonde lambda linéaire avec un verrouillage secondaire ayant une fonction de control Download PDF

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Publication number
EP1251594A2
EP1251594A2 EP02008075A EP02008075A EP1251594A2 EP 1251594 A2 EP1251594 A2 EP 1251594A2 EP 02008075 A EP02008075 A EP 02008075A EP 02008075 A EP02008075 A EP 02008075A EP 1251594 A2 EP1251594 A2 EP 1251594A2
Authority
EP
European Patent Office
Prior art keywords
coupling plug
cover element
housing
secondary locking
base body
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.)
Granted
Application number
EP02008075A
Other languages
German (de)
English (en)
Other versions
EP1251594A3 (fr
EP1251594B1 (fr
Inventor
Wolfgang Pade
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 EP1251594A2 publication Critical patent/EP1251594A2/fr
Publication of EP1251594A3 publication Critical patent/EP1251594A3/fr
Application granted granted Critical
Publication of EP1251594B1 publication Critical patent/EP1251594B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/426—Securing by a separate resilient retaining piece supported by base or case, e.g. collar or metal contact-retention clip
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • F02D41/1456—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor

Definitions

  • Coupling plugs of the above type are usually for the connection formed between a harness connector and a lambda probe, the connections provided in the coupling plug for adjustment, Signal and / or heating of the probe are provided.
  • the lambda probe and the lambda control today in conjunction with the 3-way catalytic converter an effective exhaust gas purification process.
  • the lambda probe which is screwed into an exhaust system, for example, includes one Sensor for determining the oxygen content in the exhaust gas.
  • the residual oxygen content is very suitable as a measurement and regulates the air-fuel ratio, as this shows precisely whether the air-fuel mixture completely burned.
  • the lambda probe delivers a voltage signal that the current Represents the value of the mixture composition and the mixture changes follows.
  • heated or unheated probes are used. More applications can be found the lambda probe outside of fuel vehicles, e.g. B. for regulation of gas engines or oil / gas burners.
  • Broadband lambda probes in particular have a modular structure and allow them in connection with the planar technology the integration of several functions. They usually have functional layers that are made of a porous Protective layer, consisting of an outer electrode, a sensor film, an inner electrode, a reference air duct film, an insulation layer, a Heating element, a heating foil, a resistor or a balancing element and connection contacts exist.
  • a porous Protective layer consisting of an outer electrode, a sensor film, an inner electrode, a reference air duct film, an insulation layer, a Heating element, a heating foil, a resistor or a balancing element and connection contacts exist.
  • each probe has to be adjusted individually.
  • the probe has one built-in resistor ("mini hybrid").
  • Mini hybrid which is preferred by means of a laser beam, is carried out in that the Resistance layer, which is located on a ceramic substrate, accordingly is removed, causing a change in resistance a comparison is made.
  • the adjustment unit or Resistor is placed directly on the probe.
  • the resistance is outside, for example housed on a wire harness connector coupled to the probe is.
  • the cover element has an atmosphere inside the coupling plug additional seals. Furthermore, are on the housing of the coupling plug Pressure compensation elements arranged.
  • the cover element After attaching the cover element, it is both for the supplier of the coupling plug as well as for the user, the cover element to remove and possibly carry out another adjustment or to manipulate the coupling plug itself.
  • Securing elements which cover the cover element with the base body seal, for example adhesive strips, which are irreparable when removed tear. However, these can also be easily made yourself. There is also the possibility that the adhesive tape may be unintentionally has been destroyed during assembly of the coupling plug.
  • the object of the invention is to provide an embodiment of the coupling plug, especially for a planar broadband lambda probe it is provided to develop in such a way that it can be produced very inexpensively and has a control function element by means of which It is easy to determine whether the cover element is unauthorized by third parties has been removed or not.
  • the solution to the problem is that at least one of the free Ends of the support elements pointing away from the longitudinal extent of the support elements Has control elements which are designed such that in a first position of the fixing element in the direction of the base body not in a further position from a defined position in an end position is displaceable.
  • An essential advantage of the invention is that it is here according to the invention proposed coupling connector designed small is because of the compact design, namely the insertion of electrical Contacts in a base body and the arrangement of the adjustment element also in the coupling plug, the external dimensions of the coupling plug, preferably between a wire harness and one Lambda probe is arranged are very small.
  • Coupling connector has only a few components. This is one inexpensive and efficient production possible.
  • the base body is completely surrounded by the cover element, it is possible by arranging sealing lips within the cover element or arrangement of seals on the base body, the interior of the coupling plug seal, so that this in particular against splashing water and / or dirt is protected.
  • this also supports the latching of the cover element on the Body.
  • Pre-locking and final locking are preferred Primary and secondary locking provided. This is designed that the cover element has locking arms that are in the closed Apply the condition of the cover to the base body of the coupling plug and engage there with locking lugs.
  • This primary locking takes place in two stages.
  • a first stage latches the cover element in such a way that it is held on the base body becomes.
  • the fixing element inserted in the base body on the electrical contact element guided in the base body For example, a flat connector sleeve, which in connection with the Lambda probe is standing, is fixed.
  • the fixation takes place only in the Form that the fixing element is pressed onto the contact element, so that the contact element and the fixing element enter into a firm connection.
  • the fixing element is positively guided in the base body, this means that the fixing element is in the fixed state of the contact element only move in the axial direction of the cover can.
  • the fixing element points away from the fixing element Support elements are provided which extend in the direction of the cover element extend.
  • the support element and thus the fixing element have control elements which extend away from the longitudinal extension of the support elements. These control elements fall behind in a functional state a hold-down that is fixed to the body of the coupling plug connected is. This will cause the longitudinal movement of the secondary lock in limited in the way that the fixing element only in the direction of the base body can move. Is the assembly of the secondary lock incorrect? the control elements are on the hold-down device and the fixing element cannot be pushed down by the cover element move towards the main body. This can be done immediately it can be determined that the secondary lock has not yet been installed correctly is done.
  • the support elements protrude so far the main body of the coupling plug that the cover element can only be maintained in the first latching of the primary locking. Just with full actuation and thus correct fixation of the contact element the cover element also goes the second latching of the primary locking on.
  • Hooking devices are advantageously on the circumference of the cover element provided that allow the coupling plug, for example to be attached to another part by means of a tongue and groove connection, or hanging devices in the way that electrical lines on the coupling plug can be attached.
  • Another advantage of the invention is that the aforementioned Seals can be molded onto the cover element, so that these are captively arranged.
  • a constant contact resistance between the adjustment unit and ensuring the electrical contact elements is one Solder connection provided.
  • the cover element advantageously consists of PBT (polybutylene terephthalate) or equivalent materials.
  • cover element is transparent. That’s it It is possible that the cover element can be installed before the adjustment can, since with transparent cover elements the adjustment by means of a Laser beam can take place through the cover element.
  • the coupling plug 1 shown in FIGS. 1 to 4 is concerned is such a plug, which consists of a housing 2, that composed of a base body 3 and a cover element 4.
  • a matching unit 5 On the base body 3 is a matching unit 5 in a holding device 6 arranged, which in turn with electrical contact elements 7 with the lambda probe connected via a connecting element 8 or with the via the inserted in the coupling plug 1 and in the drawings Connector not shown is connected.
  • the electrical contact elements 7 consist of shaped like conductor tracks Metal strips in the area of the coupling option 9 (Fig. 4) of the coupling plug 1 end with one side.
  • the adjustment unit 6 is made via guide elements 10, which are the largest Part are arranged on the base body 3, guided and by the electrical Contact elements 7 held in the correct position.
  • Support elements 11 are provided perpendicular to the longitudinal extension of the adjustment unit 6. These support elements 11, as shown in particular in FIGS. 5, 6 7 and 7 are formed as part of a fixing element 12.
  • the fixing element 12 is provided as a secondary locking element and has the function of an electrical one arranged in the housing 2 Contact 13, which is in particular connected to the lambda probe, to keep in position.
  • the fixing element 12 is preferably W-shaped in its cross section formed, being axially between its two legs 12a / 12b includes the electrical contact 13 in the assembled state (FIG. 7).
  • the secondary locking element or the fixing element 12 is also configured in such a way that it is preferably connected to the support elements 11 forms an integral part.
  • the support elements 11 protrude in this way far out of the housing 2 that the cover member 4 that is on the housing 2 is placed, can only be fixed in a pre-locking.
  • the secondary locking device once installed, is after it has been locked no longer detachable without completely destroying the coupling plug 1.
  • control elements 20 arranged in the in 9 and 10 embodiment shown perpendicular to this protrude and form nose-like bulges.
  • These control elements 20 engage in a hold-down device 21 which directly connects to the housing 2 the coupling plug 1 is connected.
  • the hold-down 21 has one Recess 22 into which the control element 20 of the fixing element 12 intervenes if the secondary locking is installed in a functional manner. If the fixing element 12 is not installed correctly, lie the control elements 20 on the hold-down 21, so that the Do not fix the cover element 4 on the base body 3 of the coupling plug 1 leaves.
  • the coupling plug 1 preferably has grooves 14 on its circumference, which allow a coupling plug 1 in the holder provided insert.
  • the holding element 15 is designed like a clip, so that the coupling plug 1 with the holding element 15 in the open position Cable harness can be plugged in, and by means of a further movement this can then be closed.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Measuring Leads Or Probes (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP02008075A 2001-04-19 2002-04-11 Connecteur pour une sonde lambda linéaire avec un verrouillage secondaire ayant une fonction de contrôle Expired - Lifetime EP1251594B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20106753U DE20106753U1 (de) 2001-04-19 2001-04-19 Kleinbauender Kupplungsstecker, insbesondere für eine planare Breitband-Lambda-Sonde, insbesondere mit einer Sekundärverriegelung als Kontrollfunktionselement
DE20106753U 2001-04-19

Publications (3)

Publication Number Publication Date
EP1251594A2 true EP1251594A2 (fr) 2002-10-23
EP1251594A3 EP1251594A3 (fr) 2003-12-17
EP1251594B1 EP1251594B1 (fr) 2005-04-06

Family

ID=7955931

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02008075A Expired - Lifetime EP1251594B1 (fr) 2001-04-19 2002-04-11 Connecteur pour une sonde lambda linéaire avec un verrouillage secondaire ayant une fonction de contrôle

Country Status (2)

Country Link
EP (1) EP1251594B1 (fr)
DE (2) DE20106753U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113690700A (zh) * 2021-08-26 2021-11-23 中航光电科技股份有限公司 一种转接器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007055114A1 (de) * 2007-11-19 2009-05-20 Volkswagen Ag Verfahren zum sicheren Anbringen eines Sensors an einem Kraftfahrzeug und entsprechend ausgestalteter Sensor und Kraftfahrzeug

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0726617A2 (fr) * 1995-02-09 1996-08-14 The Whitaker Corporation Connecteur avec verrouillage secondaire et mécanisme d'accouplement
US5947775A (en) * 1996-05-29 1999-09-07 Yazaki Corporation Connector
US6132256A (en) * 1996-09-11 2000-10-17 Augat Components Gmbh, Division Of Thomas & Betts Design of a lambda module with mating plug
WO2002045212A1 (fr) * 2000-12-01 2002-06-06 Robert Bosch Gmbh Fiche de couplage de petite taille destinee en particulier a une sonde lambda planaire large bande

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0726617A2 (fr) * 1995-02-09 1996-08-14 The Whitaker Corporation Connecteur avec verrouillage secondaire et mécanisme d'accouplement
US5947775A (en) * 1996-05-29 1999-09-07 Yazaki Corporation Connector
US6132256A (en) * 1996-09-11 2000-10-17 Augat Components Gmbh, Division Of Thomas & Betts Design of a lambda module with mating plug
WO2002045212A1 (fr) * 2000-12-01 2002-06-06 Robert Bosch Gmbh Fiche de couplage de petite taille destinee en particulier a une sonde lambda planaire large bande

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113690700A (zh) * 2021-08-26 2021-11-23 中航光电科技股份有限公司 一种转接器
CN113690700B (zh) * 2021-08-26 2024-05-17 中航光电科技股份有限公司 一种转接器

Also Published As

Publication number Publication date
EP1251594A3 (fr) 2003-12-17
DE50202682D1 (de) 2005-05-12
EP1251594B1 (fr) 2005-04-06
DE20106753U1 (de) 2002-08-29

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