EP2509167A2 - Connecteur à fiche avec aide à l'introduction de contacts - Google Patents

Connecteur à fiche avec aide à l'introduction de contacts Download PDF

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Publication number
EP2509167A2
EP2509167A2 EP12158359A EP12158359A EP2509167A2 EP 2509167 A2 EP2509167 A2 EP 2509167A2 EP 12158359 A EP12158359 A EP 12158359A EP 12158359 A EP12158359 A EP 12158359A EP 2509167 A2 EP2509167 A2 EP 2509167A2
Authority
EP
European Patent Office
Prior art keywords
sealing mat
connector
pressure plate
pressure
opening
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Withdrawn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
EP12158359A
Other languages
German (de)
English (en)
Other versions
EP2509167A3 (fr
Inventor
Werner Hofmeister
Michael Schoenfeld
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 EP2509167A2 publication Critical patent/EP2509167A2/fr
Publication of EP2509167A3 publication Critical patent/EP2509167A3/fr
Withdrawn legal-status Critical Current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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • 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
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/521—Sealing between contact members and housing, e.g. sealing insert
    • 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

Definitions

  • the present invention relates to a connector for connection to a mating connector according to the preamble of the main claim.
  • the invention further relates to a method for introducing a contact element in such a connector.
  • Connectors are used, inter alia, to produce, for example, in motor vehicles electrical connections between cables.
  • a connector may be provided to open a plurality of individual cables in this connector and by coupling the connector to a mating connector an electrical connection between each of the plurality of cables and corresponding ends of continuing cables can be made.
  • suitable sealing elements may be provided in the connector, which create in the assembled state sealing around the cable or contact elements around.
  • the connector may have a housing in which a plurality of extending in the longitudinal direction and open at an upper side of the housing contact receiving spaces are provided. In these contact receiving spaces, individual contact elements, which in turn are connected to one end of a cable, can be accommodated.
  • a sealing mat Adjacent to the top of the housing, a sealing mat may be arranged, which is formed of an elastic material and each having in the region of the upper openings of the contact receiving spaces corresponding openings.
  • a pressure plate can be arranged on a side opposite the top of the housing side of the sealing mat.
  • the pressure plate may be held directly by the housing or indirectly by intermediately mounted means on the housing.
  • the pressure plate may also be integrally formed with a part of the housing. Thus, the sealing mat between the top of the housing and the pressure plate is held.
  • a conventional connector is for example in DE 10 2006 017 448 A1 described.
  • individual or a plurality of contact elements can be arranged in associated contact receiving spaces of the housing.
  • the contact elements including the attached cable ends can be inserted through openings in the pressure plate and in the sealing mat through to a respective contact receiving space.
  • the dimensions and the elasticity of the sealing mat are chosen such that the sealing mat after passing the contact elements sealingly around puts the cable ends or the ends of the contact elements around.
  • an outer circumference of the openings in the sealing mat should be smaller than an outer circumference of the contact elements or cable ends.
  • One underlying the invention is that in conventional connectors leaks can be provoked by the fact that damage to the sealing mat can occur when inserting the contact elements in the contact receiving spaces of the housing. In such an insertion a contact element must be pushed through a circumferentially smaller opening in the sealing mat. In particular, when the contact elements have no smooth side surface, it may cause damage to the sealing mat and thus later to leaks. For this reason, in conventional connectors usually contact elements with smooth side surfaces, also referred to as clean-body contacts used, such contact elements may often be acted upon only with low tensile forces before they tear out of the connector housing. It may be preferable, instead of such laterally smooth contact elements, to use other contact elements, e.g. have a transversely projecting to its longitudinal projection, similar to a barb. Such contact elements are sometimes referred to as lance contacts.
  • the pressure plate in the connector so that it can be displaced in one direction towards the sealing mat to exert mechanical pressure on the sealing mat, and on the other to design the sealing mat so that the openings provided therein reduce their cross-section under a pressure exerted by the pressure plate.
  • the displaceability of the pressure plate and the pressure to be exerted in this way on the sealing mat on the one hand and the flexibility of the sealing mat and thus their ability to reduce the cross section of the openings provided therein at applied pressure on the other hand should be such that a cross section of an opening in the sealing mat with a small pressure on the sealing mat by the pressure plate is greater than a cross section of a contact receiving space or as a cross section of a male in the contact receiving space contact element and the Cross section of an opening in the sealing mat at a higher pressure on the sealing mat by the pressure plate is smaller than the cross section of a contact receiving space or a contact element.
  • the pressure plate and its displaceability on the one hand and the flexibility or elasticity of the sealing mat on the other hand be chosen so that the openings in the sealing mat in a state in which a little or no pressure is exerted by the pressure plate on the sealing mat, large are enough that a contact element can be pushed through this opening into the underlying contact receiving space, without any risk that the contact element thereby damaging the sealing mat.
  • the opening in the sealing mat in this state is large enough that the contact element can be passed through the opening without touching it. After the contact element has been passed through the opening, then the pressure plate can be displaced, so that it exerts a considerably greater pressure on the sealing mat.
  • the sealing mat deforms in such a way that the cross-section of the openings is considerably reduced.
  • the opening cross-section decreases in such a way that the edge of an opening in the sealing mat sealingly bears against a contact element carried out through this opening or a cable attached to this contact element.
  • a contact element can be easily and low risk passed through the opening in the sealing mat, to then be anchored in the underlying contact receiving space.
  • the sealing mat can create tight due to the pressure exerted on them to the performed contact element or the cable and provide a seal. Since damage to the sealing mat during insertion of the contact element can be largely avoided in this way, a reliable and durable seal within the connector can be achieved.
  • the sealing mat can be formed, for example, as a hollow chamber body.
  • one or more hollow chambers may be provided in the sealing mat, which are filled with gas, for example. Due to these hollow chambers, the sealing mat can have increased flexibility and under Deform pressure as desired.
  • the geometry of the hollow chambers may be chosen such that deform the hollow chambers at a pressure exerted by the pressure plate in particular such that the cross-section of openings provided in the sealing mat is considerably reduced.
  • the sealing mat may be provided in the vicinity of an opening with a recess.
  • the connector has, for example on the pressure plate, on the housing or on an additional component a suitable expansion element which engages upon pressure of the pressure plate on the sealing mat in this recess and spreads the sealing mat in the region of the opening to reduce the cross-section of the opening.
  • the expansion element can in this case protrude from the pressure plate.
  • the spreader may protrude from the top of the housing to the sealing mat, wherein the spreader can protrude, for example, on an upper side of the housing part or between this top and the sealing mat, an additional component may be provided, protrude from this spreader to the sealing mat can.
  • the recess provided in the sealing mat can in this case be arranged and formed in the vicinity of the opening such that adjacent regions of the sealing mat are pushed towards the opening upon engagement of the expansion element in this opening, so that the cross-section of the opening is reduced.
  • the spreader may have a tapered cross-section. This can be achieved that with increasing pressure exerted by the pressure plate on the sealing mat pressure, the expansion element presses increasingly deeper into the recess and the recess increasingly spreads and thus increasingly reduces the cross section of the adjacent opening.
  • An embodiment of the connector with recesses in the sealing mat adjacent to openings provided therein and spreading elements which engage in these recesses and deliberately spread apart on the other hand to reduce the cross-section of the openings, can lead to a particularly good sealing effect through the sealing mat, as soon as they is pressurized by the pressure plate.
  • the connector In the assembled, ie populated, state, the connector preferably has one or more elongated contact elements received in corresponding contact receiving spaces. Since the sealing mat of the connector can be deformed by the displaceable pressure plate and in particular can be acted upon for insertion of the contact elements only with low pressure and thus may have openings with large cross-section, the contact elements may have an uneven side surface, without thereby risking damage to the Sealing mat would arise.
  • the contact elements may have transverse projections to their longitudinal direction.
  • the contact elements may be formed, for example, as lance contacts in which project laterally barbs and can ensure a secure attachment of the contact element within the contact receiving space of the connector.
  • the pressure plate is first arranged such that the pressure plate exerts a minimal pressure on the sealing mat.
  • This minimum pressure should be sufficiently low that the openings in the sealing mat assume a sufficiently large cross-section in order to be able to pass the contact element through them.
  • the pressure may be zero.
  • a contact element can be introduced into a contact receiving space.
  • the pressure plate is displaced towards the sealing mat to exert a greater than the previously applied minimum pressure on the sealing mat. In this way, the sealing mat is compressed in the direction of displacement of the pressure plate and expands in a direction transverse thereto, so that the openings in the sealing mat reduce its cross section and create a sealing around the contact elements received therein or the cables attached thereto.
  • Fig. 1 shows components of a connector 1 for an electrical connector in an electronic control unit of a motor vehicle in an exploded view.
  • the connector 1 has an upper housing part 3 and a lower housing part 5, which together form a housing 7. Between the upper housing part 3 and the lower housing part 5, a sealing mat 9 is arranged.
  • the lower housing part 5 can be connected to the upper housing part 3 by means of locking arms 11, wherein the sealing mat 9 is interposed between the two housing parts 3, 5 and the locking arms 11 engage through slots 13 in the sealing mat 9 therethrough.
  • Openings 15, 17 are provided both in the upper housing part 3 and in the sealing mat 9, through which a contact element can be pushed in each case, in order then to be locked in place in a contact receiving space 19 in the lower housing part 5.
  • Fig. 2 shows a contact element 21, as it can be accommodated in the connector 1.
  • the contact element 21 has at its distal end 23 a so-called box contact 25.
  • a slot-shaped opening 27 is provided at a front end, can engage in the correspondingly complementary formed contact elements of a mating connector.
  • a protruding transversely to the longitudinal direction projection 29 is formed. Because of this barb-like projection 29, such a contact element 21 is also referred to as a lance contact.
  • the contact element 21 has two crimping regions 33, 35. Individual tabs of the crimping areas 33, 35 can be crimped around one end of a cable so that a reliable mechanical and electrical connection between the cable (in Fig. 2 not shown) and the contact element 21 can be produced.
  • Fig. 3 the components of the connector are arranged in an insertion configuration.
  • a sealing mat 9 is in this case arranged between a lower part 5 of the housing 7 and a pressure plate 37.
  • the pressure plate 37 may be formed here as a separate component.
  • the pressure plate 37 also, for example Part of in Fig. 1 be shown upper housing part 3.
  • the sealing mat 9 is made of an elastic material, such as Example silicones, liquid silicones or natural rubber, for example liquid silicone rubber (eg LSR 3003) or nitrile rubber (eg NBR - Nitrile Butadiene Rubber).
  • liquid silicone rubber eg LSR 3003
  • nitrile rubber eg NBR - Nitrile Butadiene Rubber
  • the pressure plate 37 at a distance S 1 spaced from the lower part 5 of the housing, wherein the distance S 1 is greater than the thickness of the sealing mat 9 in the relaxed state.
  • the pressure plate 37 exerts no pressure on the sealing mat 9 in this configuration.
  • the sealing mat 9 is in its relaxed state. In this state, the cross section of the opening 17 in the sealing mat 9 is larger than the cross section of a contact element 21 to be inserted. Therefore, the contact element 21 can be inserted through the opening 17 into the contact receiving space 19 without touching the sealing mat 9 and in particular its fins 39 and possibly damaged by friction, for example.
  • the pressure plate 37 has been displaced in the direction illustrated by the arrows 43 towards the lower part 5 of the housing. In this configuration, it is arranged at a distance S 2 to the lower part 5, which is smaller than the thickness of the sealing mat 9 in the relaxed state.
  • the pressure plate 37 therefore exerts a pressure on the sealing mat 9 and compresses it in the direction of the arrows 43. Because of this compression pressure, the sealing mat 9 expands in a direction transverse to the direction of the arrow 43. This expansion is aided by the increased flexibility of the sealing mat 9 due to the hollow chambers 41 provided therein. Due to this expansion, the edge of the opening 17 or the slats 39 provided thereon pushes towards the center of the opening 17, so that the cross-section of the opening 17 is significantly reduced.
  • the displacement of the pressure plate 37 and thus the pressure on the sealing mat 9 can be adjusted such that the diameter of the opening 17 is sufficient reduces that it comes to a concern of the sealing mat 9 with its fins 39 on the attached to the contact element 21 cable 47. In this way, a reliable sealing of the connector can be ensured, since the sealing mat 9 surrounds sealingly around the cable 47 and reliably prevents the ingress of dirt or moisture.
  • the pressure plate 37 may be in the in Fig. 4 illustrated configuration are preferably locked, for example by being fixed to the housing 7 in a suitable manner.
  • FIGS. 5 and 6 an alternative embodiment of a connector according to the invention is again shown in an insertion configuration and in a sealing configuration.
  • This embodiment differs from the embodiment described above, in particular by the design of the sealing mat.
  • recesses 45 are provided in a region around the opening 17.
  • the recesses 45 may be formed, for example in the form of an annular groove around the opening 17.
  • the recesses 45 are directly in the vicinity of the opening 17, that is, for example, in a range of a few millimeters next to the opening 17, respectively.
  • expansion elements 49 are formed at an upper side of the lower part 5 of the housing 7 at an upper side of the lower part 5 of the housing 7 .
  • the position of these expansion elements 49 is substantially aligned with the position of the recesses 45 in the sealing mat 9.
  • the spreading elements 49 can surround the opening 17 in an annular manner.
  • the pressure plate 37 is disposed at a large distance S 1 to the lower part 5 of the housing 7, so that the sealing mat 9 is not applied to the upper side of the lower part 5 of the housing and the spreading elements 49 do not engage in the recesses 45.
  • the opening 17 is larger than the contact element 21 to be inserted, so that it can be easily inserted into the underlying contact receiving space 19.
  • the pressure plate 37 has been displaced toward the lower part 5 of the housing, so that the distance S 2 between the pressure plate 37 and the lower part 5 is substantially smaller than in FIG Fig. 5 illustrated configuration.
  • the spreading elements 49 are pressed into the corresponding recesses 45. Since the spreading elements 49 are larger than the recesses 45, the sealing mat is thereby strongly deformed, in particular in the area around the opening 17, and the edge of the opening 17 and the lamellae 39 arranged thereon are pushed towards the center of the opening 17.
  • the fins 39 lie around sealingly attached to the attached to the contact element 21 cable 47 and seal in this way the connector to the outside.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP12158359A 2011-04-06 2012-03-07 Connecteur à fiche avec aide à l'introduction de contacts Withdrawn EP2509167A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110006838 DE102011006838A1 (de) 2011-04-06 2011-04-06 Steckverbinder mit Einführhilfe zum Einführen von Kontaktelementen

Publications (2)

Publication Number Publication Date
EP2509167A2 true EP2509167A2 (fr) 2012-10-10
EP2509167A3 EP2509167A3 (fr) 2012-12-19

Family

ID=45819054

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12158359A Withdrawn EP2509167A3 (fr) 2011-04-06 2012-03-07 Connecteur à fiche avec aide à l'introduction de contacts

Country Status (2)

Country Link
EP (1) EP2509167A3 (fr)
DE (1) DE102011006838A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105958262A (zh) * 2016-06-07 2016-09-21 浙江力达电器股份有限公司 摩托车用诊断连接器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020133319A1 (de) 2020-12-14 2022-06-15 Lear Corporation Elektrische Steckverbinder mit verjüngten Anschlussdurchgängen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006017448A1 (de) 2006-04-13 2007-10-18 Robert Bosch Gmbh Stecker mit Mattendichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8431301D0 (en) * 1984-12-12 1985-01-23 Amp Great Britain Lead sealing assembly
FR2673049B1 (fr) * 1991-02-15 1994-12-02 Fancelo Connecteur electrique a passe-fils d'etancheite.
JP3175817B2 (ja) * 1996-04-05 2001-06-11 矢崎総業株式会社 防水コネクタ
JP3566540B2 (ja) * 1998-03-31 2004-09-15 矢崎総業株式会社 防水コネクタ
FR2872636B1 (fr) * 2004-06-30 2006-09-29 Chevalier Soc Par Actions Simp Connecteur etanche

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006017448A1 (de) 2006-04-13 2007-10-18 Robert Bosch Gmbh Stecker mit Mattendichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105958262A (zh) * 2016-06-07 2016-09-21 浙江力达电器股份有限公司 摩托车用诊断连接器
CN105958262B (zh) * 2016-06-07 2018-08-17 浙江力达电器股份有限公司 摩托车用诊断连接器

Also Published As

Publication number Publication date
DE102011006838A1 (de) 2012-10-11
EP2509167A3 (fr) 2012-12-19

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