EP2740185B1 - Élément de contact électrique présentant une lance encliquetable pour un boîtier de connecteur - Google Patents

Élément de contact électrique présentant une lance encliquetable pour un boîtier de connecteur Download PDF

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Publication number
EP2740185B1
EP2740185B1 EP12726434.9A EP12726434A EP2740185B1 EP 2740185 B1 EP2740185 B1 EP 2740185B1 EP 12726434 A EP12726434 A EP 12726434A EP 2740185 B1 EP2740185 B1 EP 2740185B1
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EP
European Patent Office
Prior art keywords
electrical contact
locking element
locking
contact element
lance
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.)
Active
Application number
EP12726434.9A
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German (de)
English (en)
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EP2740185A2 (fr
Inventor
Wolfgang Pade
Rolf Wittmann
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
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2740185A2 publication Critical patent/EP2740185A2/fr
Application granted granted Critical
Publication of EP2740185B1 publication Critical patent/EP2740185B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members
    • H01R13/432—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members by stamped-out resilient tongue snapping behind shoulder in base or case

Definitions

  • plugs for producing an electrical connector essentially comprises a plug housing with at least one contact element receiving chamber, also called contact chamber, wherein each contact element receiving chamber can be equipped with an electrical contact element.
  • each contact element receiving chamber can be equipped with an electrical contact element.
  • the electrical contact elements engage in the contact element receiving chambers. This is often done by a protruding from the electrical contact element latching lance, which is compressed upon insertion of the electrical contact element in the contact element receiving chamber and, when the electrical contact element has reached a predetermined position within the contact element receiving chamber, pops up to engage with an undercut of the contact element receiving chamber.
  • the locking lance has a relatively narrow shape, which is issued from the electrical contact element.
  • an electrical contact element for receiving in a contact element receiving chamber is known.
  • a region of the electrical contact element has a latching means, which enables a latching of the electrical contact element within the contact element receiving chamber.
  • the respective locking means is compressed, while the electrical contact element is inserted into the contact element receiving chamber.
  • the locking lance loading forces acting counter to the insertion of the electrical contact element in the contact element receiving chamber on the locking lance are characterized limited that either the locking lance kinks or whose relatively sharp-edged end cuts through the undercut and thus leads to damage of the connector housing.
  • the electrical contact element has the features of independent claim 1, which discloses two alternatives.
  • An electrical contact element for a single-pole or multi-pole plug housing having at least one contact element receiving chamber made of electrically insulating material for receiving the at least one electrical contact element is provided.
  • the electrical contact element has a fastening section for fastening an electrical line.
  • the electrical contact element has a contact section for producing an electrically conductive connection with a corresponding mating contact element.
  • the electrical contact element has at least one latching lance, wherein the latching lance is reversibly displaceable from a first position to a second position. The locking lance is in the first position obliquely outwards.
  • the latching lance is latched in the first position with the contact element receiving chamber when the contact element is arranged in the contact element receiving chamber in a predetermined position.
  • the locking lance also has a first locking element.
  • the electrical contact element has a second locking element corresponding to the first locking element. In the first position are the first and the second locking element connected to one another due to a force acting on the locking lance against an extension direction of the electrical contact element from the contact element receiving chamber force.
  • the first locking element has a first portion, wherein the first portion extends substantially transversely to a direction of extension of the electrical contact element from the contact element receiving chamber.
  • connection of the first and the second locking element under load serves to ensure that the pull-out forces, which are usually applied to the locking lance in a train on the electrical line, is not absorbed solely by the fixed connection of the locking lance with the electrical contact element, such as this happens in the prior art, but also by the first and the second locking element.
  • the force acting on the locking lance against the extension direction of the electrical contact element force on the one part on the fixed connection of the locking lance with the electrical contact element and on the two interconnected locking elements.
  • the proposed here electrical contact element can absorb a higher force until the locking lance fails.
  • the two locking elements in this position can be engaged with each other, but spaced from each other.
  • the locking lance is designed so resilient that a displacement of the locking lance from the first position to the second position takes place against a spring force. Due to the spring force, the locking lance can be moved independently from the second position to the first position.
  • tab elements engage in corresponding formations or recesses.
  • a tab element may be formed on the contact element and the formation or recess on the locking lance.
  • the tab element may also be formed on the latching lance and corresponding to the tab member molding or recess on the contact element.
  • the first and the second locking element in the second position are non-connectable to each other.
  • Such a configuration can offer the advantage that, in particular when the electrical contact element is integrally formed, in the manufacturing process of the electrical contact element, the first locking element on the electrical contact element and the second locking element on the locking lance can be formed without already at this time the first and the second locking element would have to cooperate. If now the locking lance is displaced into the second position, the first and the second locking element can find each other, respectively in the second position cooperate such that at a displacement of the locking lance in the first position with simultaneous loading of the locking lance against the extension direction of the electrical contact element, the first and the second locking element are connected to each other.
  • the functionality of finding each other in the second position can be achieved by utilizing suspension properties of the material used to make the first and second locking elements. In the second position, the first and second locking elements can be disengaged.
  • the locking lance has an outwardly pointing inclined element with a first end and a second end opposite the first end.
  • the second end is fixedly connected to the electrical contact element.
  • the first locking element is firmly connected.
  • the first end is angled such that the oblique element and the first locking element enclose an angle, wherein the contact element receiving chamber facing the first end is rounded.
  • the rounding of the first end can be generated for example by a bending operation. Furthermore, perpendicular to the bend extending edges of the first end may be deburred or rounded. Furthermore, if the locking lance is made of sheet metal in conjunction with a stamping and bending process, by a corresponding selection of the punching direction and the cutting punch used, the first end are formed such that a rounding of the first end after the manufacturing process of the locking lance can be omitted.
  • the first locking element has a first section and a second section fixedly connected to the first section.
  • the first section extends substantially transversely to the extension direction of the electrical contact element from the contact element receiving chamber.
  • the second section is designed essentially as a hook element.
  • the second locking element is designed as a tab element. In the first position, the first locking element and the second locking element cooperate in such a way that the tab element and the hook element are positively connected.
  • Essentially designed as a hook element is to be understood in such a way that the hook element can also be channel-shaped.
  • the hook element also does not necessarily have to be round on its inside.
  • Substantially transversely to an extension direction means that the first locking element is formed in the first position within the manufacturing tolerances transversely to the extension direction.
  • the hook element extends in the extension direction.
  • the hook element may also extend counter to the extension direction in order to form a positive connection between the tab element and the hook element.
  • the first locking element of the electrical contact element extends substantially transversely to the extension direction of the contact element from the contact element receiving opening.
  • the first locking element has an opening.
  • the second locking element of the electrical contact element has an angle element with a first and a second leg, wherein the first leg extends through the opening and the second leg extends substantially parallel to the first locking element. In the first position, the first locking element and the second locking element cooperate in such a way that the second leg and the second locking element are positively connected.
  • the electrical contact element has a contact body with an inner space bounded by a contact body inner wall and a contact body outer wall opposite the contact body inner wall.
  • the locking lance extends from the contact body outer wall to the outside.
  • the first locking element extends into the interior, wherein in the first position, the first locking element is positively connected to the second locking element within the interior.
  • the locking lance may be formed with the first locking element of a first portion of a first side wall of the example box-shaped contact body.
  • the second locking element may be formed, for example, from a second portion of a second side wall adjacent to the first side wall, or from a third portion of a third side wall opposite the first side wall.
  • the first locking element in the second position, does not extend through the interior.
  • the contact element receiving chambers of the plug housing can be formed closer to the contact body outside of the box-shaped contact body. In this way, a better centering of the electrical contact element within the plug housing can be obtained. This can facilitate a connection of the assembled with the electrical contact elements plug housing to a equipped with electrical mating contact elements mating connector housing. Furthermore, in the second position, the oblique element of the latching lance can be substantially flush with the outer wall of the contact body.
  • the electrical contact element with the second locking element and the locking lance with the first locking element are made in one piece.
  • the one-piece design of the electrical contact element and the locking lance a particularly cost-saving production of the electrical contact element is possible, since a joining operation of a possibly separately shaped locking lance with the electrical contact element deleted. Since the electrical contact element is usually made entirely of a metal with suspension properties, such as Tombak or cold rolled brass sheet, it can be avoided that fatigue or relaxation phenomena, as they are known in plastic parts occur.
  • the electrical contact element with the second locking element together with the locking lance with the first locking element is a stamped and bent part.
  • the shape of the electrical contact element as a stamped and bent part allows to produce the electrical contact elements extremely inexpensive.
  • a settlement of the electrical Contact element are made in a single operation from the corresponding metal and in a subsequent bending process, the sheet metal part are bent, that the electrical contact element is formed in the embodiment shown here.
  • FIG. 1 schematically an electrical contact element 2 is shown.
  • the electrical contact element 2 consists essentially of a mounting portion 4, not shown, to which an electrical line can be stopped and a contact portion 6, which is designed here as a substantially box-shaped contact body 8.
  • the contact body 8 is limited to the outside by a contact body outside 10.
  • the contact body 8 has a contact body outer wall 10 opposite Kunststoffèvewandung 12.
  • the Kunststoffèvewandung 12 defines an interior 13.
  • two opposed and dashed lines shown contact lamellae 17 are shown on the Kunststoffèvewandung 12.
  • the contact body 8 has at one end 15 an opening through which a mating contact in the interior 13 is inserted such that an electrical contact between the contact blades 17 and the mating contact can be produced.
  • the contact body 8 further comprises a locking lance 14, which consists essentially of an outwardly inclined member 16 and a first locking element 22.
  • the oblique element 16 has a first end 18 and a second end 20. Here, the second end 20 is fixedly connected to a first side 21 of the contact body 8. With the first end 18, which is outwardly, so rounded to a contact receiving chamber of a plug-in contact, the first locking element 22 is firmly connected.
  • the first locking element 22 has a first portion 26 which adjoins the first end 18 and a second portion 28 which adjoins the first portion 26 and is fixedly connected thereto.
  • the first section 26 extends substantially perpendicular to an extension direction A. Between the oblique element 16 and the first section 26 an acute angle ⁇ is included.
  • the representation of the electrical contact element 2 shows the locking lance 14 in its first position, wherein on the locking lance 14 no force F acts against the extension direction.
  • the second portion 28 is formed as a hook member 30.
  • the hook element 30 extends in the extension direction A and is designed such that in the first position of the latching lance 14 it is located in the interior 13 of the contact body 8.
  • a second locking element 24 is formed, which consists essentially of a tab member 32.
  • This tab element 32 may, for example, be designed in such a way that a partial region of a second side 23 adjacent to the first side 21 and connected to the first side is bent into the interior 13 in order to form said tab element 32.
  • the tab element 32 engages in the hook element 30 such that in the first position, the first locking element 22 is positively connected to the second locking element 24 when the force F against the extension direction A engages the locking lance 14.
  • selected representation engage the first and second locking element into each other, but do not touch each other.
  • the locking lance 14 In a displacement of the locking lance 14 from the first position to a second position, the locking lance 14 is displaced along a direction indicated by an arrow displacement direction V, wherein the displacement direction V extends substantially perpendicular to the extension direction A and parallel to the second side 23.
  • the oblique element 16 of the latching lance 14 is displaced substantially so far in the direction of the interior 13 that the oblique element 16 is substantially flush with the contact body outer wall 10 of the contact body 8.
  • the first locking element 22 is displaced with its hook member 30 within the interior 13 in the direction of displacement V, but without leaving the interior 13.
  • the hook member 30 and the tab member 32 are no longer engaged, so that there is no positive connection between the first locking member 22 and the second locking member 24 in this position.
  • the electrical contact element 2 is located in a contact element receiving chamber of a connector, not shown here, wherein the locking lance 14, in particular the first portion 26 of the first locking element 22 is latched with an undercut of the contact element receiving chamber.
  • the electrical contact element is loaded, for example, by a train on a fixed to the mounting portion 4 electrical line along the extension direction A, the pull-out direction A opposite force F acts on the locking lance 14, in particular on the first end 18 of the oblique element 16th the rounding of the first end 18, the locking lance 14 can not drill into a housing of the connector, thereby possibly destroy the undercut of the contact element receiving chamber.
  • the hook element 30 of the first locking element 22 is pressed against the tab element 32 of the second locking element 24.
  • the first 22 and the second locking element 24 is positively connected to each other.
  • first 22 By the positive connection of the first 22 to the second locking element 24 prevents the entire loading force F must be taken up exclusively by the oblique element 16, as is necessary in the prior art. Rather, the interaction of the first locking element 22 with the second locking element 24 causes the force F to be distributed to the oblique element 16 and the two locking elements 22, 24.
  • This locking lance 14 can accommodate a much higher force F than is possible with a locking lance according to the prior art, ie without the two locking elements 22, 24. Also, the rounding of the first end 18 causes the locking lance 14 does not drill into the surrounding housing of the connector and thus can damage the housing.
  • FIG. 2 an electrical contact element 2 is shown, which differs from the illustration FIG. 1 only differs in the configuration of the first locking element 22 and the second locking element 24.
  • the first locking element 22 consists essentially only of the FIG. 1 known first section 26, the second section 28 is missing.
  • the first locking element 22 is an opening 46 having an upper boundary 48, wherein the upper boundary 48 in conjunction with the second locking element 24 determines how far the oblique element 16 in the direction of the displacement direction V to achieve the second position of the locking lance 14 is displaced
  • the second locking element 24 consists essentially of an angle element 40, which also here, as already out FIG. 1 is known, formed from a portion of the second side 23.
  • the angle element 40 essentially consists of a first leg 42 and a second leg 44.
  • first leg 42 extends through the opening 46, while the second leg 44 extends in the direction of the displacement direction V and substantially parallel to the first section 26 extends.
  • first locking element 22 and the second locking element 24 are positively connected when the force F engages the locking lance 14.
  • a displacement of the locking lance 14 from the first position to the second position of the second leg 44 could be inserted through the opening 46 therethrough.
  • the first locking element 22 and the second locking element 24 to each other unverbindbar.
  • the electrical contact element 2 both out FIG. 1 as well as out FIG. 2 are integral and each formed as a stamped and bent part. In particular, it is possible to completely separate the first locking element 22 and the second locking element 24 during the production process of the electrical contact element 2. In this way, the production of the first locking element 22 takes place outside of the inner space 13.
  • the locking lance 14 is displaced along the displacement direction V. This slides in FIG. 1 the hook member 30 along the tab member 32 until the locking lance 14 has reached its second position. In the second position, the hook element 30 is displaced in the extension direction A such that when the locking lance 14 assumes its first position, the first locking element 22 and the second locking element 24 are positively connected to each other by spring properties of the selected material.
  • FIG. 1 the locking lance 14 is displaced along the displacement direction V. This slides in FIG. 1 the hook member 30 along the tab member 32 until the locking lance 14 has reached its second position. In the second position, the hook element 30 is displaced in the extension direction A such that when the locking lance 14 assumes its first
  • the first portion 26 slides on the second leg 44 along the direction of displacement V until the locking lance 14 has reached its second position. At this moment, the first portion 26 is displaced in the direction of the extension direction A such that the second leg 44 passes through the opening 46 due to the spring properties of the material used. If now the locking lance 14 is displaced into its first position, the first locking element 22 and the second locking element 24 are positively connected to each other.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Claims (8)

  1. Élément de contact électrique pour un boîtier de connecteur unipolaire ou multipolaire comportant au moins une chambre de réception d'élément de contact constituée d'un matériau électriquement isolant pour recevoir l'au moins un élément de contact électrique (2), dans lequel l'élément de contact électrique (2) comporte une partie de fixation (4) destinée à fixer un conducteur électrique, dans lequel l'élément de contact électrique (2) comporte une partie de contact (6) destinée à établir une liaison électriquement conductrice avec un élément de contact antagoniste correspondant, dans lequel l'élément de contact électrique (2) comporte au moins une lance d'encliquetage (14), dans lequel la lance d'encliquetage (14) peut être déplacée d'une première position à une seconde position et inversement, dans lequel, à la première position, la lance d'encliquetage (14) s'étend obliquement vers l'extérieur, dans lequel, à la première position, la lance d'encliquetage (14) est encliquetée avec la chambre de réception d'élément de contact lorsque l'élément de contact électrique (2) est disposé à une position prédéterminée dans la chambre de réception d'élément de contact,
    dans lequel la lance d'encliquetage (14) comporte en outre un premier élément de verrouillage (22),
    dans lequel l'élément de contact électrique (2) comporte un second élément de verrouillage (24) correspondant au premier élément de verrouillage (22), dans lequel le premier élément de verrouillage (22) et le second élément de verrouillage (24) sont réalisés de manière à ce que, lorsqu'à la première position, une force (F) agit sur la lance d'encliquetage (14) dans une direction opposée à une direction d'extraction (A) de l'élément de contact électrique (2) hors de la chambre de réception de l'élément de contact, le premier (22) et le second élément de verrouillage (24) soient reliés l'un à l'autre,
    dans lequel le premier élément de verrouillage (22) comporte une première partie (26), dans lequel la première partie (26) s'étend sensiblement transversalement à une direction d'extraction (A) de l'élément de contact électrique (2) hors de la chambre de réception de l'élément de contact,
    caractérisé en ce que le premier élément de verrouillage (22) comprend une seconde partie (28) reliée de manière fixe à la première partie (26),
    dans lequel la seconde partie (28) est réalisée sensiblement sous la forme d'un élément à crochet (30), et en ce que le second élément de verrouillage (24) est réalisé sous la forme d'un élément à languette (32), dans lequel, à la première position, le premier élément de verrouillage (24) et le second élément de verrouillage (26) coopèrent de manière à ce que l'élément à languette (32) et l'élément à crochet (30) soient reliés par complémentarité de forme ; ou
    en ce que le premier élément de verrouillage (22) comporte une ouverture (46), et en ce que le second élément de verrouillage (24) présente un élément d'angle (40) ayant une première (42) et une seconde jambe (44), dans lequel la première jambe (42) s'étend à travers l'ouverture (46) et la seconde jambe (44) s'étend sensiblement parallèlement au premier élément de verrouillage (22),
    dans lequel, à la première position, le premier élément de verrouillage (22) et le second élément de verrouillage (24) sont reliés par complémentarité de forme.
  2. Élément de contact électrique selon la revendication 1, caractérisé en ce que le premier (22) et le second élément de verrouillage (24), à la seconde position, ne peuvent être reliés l'un à l'autre.
  3. Élément de contact électrique selon la revendication 1 ou 2,
    caractérisé en ce que la lance d'encliquetage (14) comporte un élément oblique (16) orienté vers l'extérieur ayant une première extrémité (18) et une seconde extrémité (20) opposée à la première extrémité (18), dans lequel la seconde extrémité (20) est reliée de manière fixe à l'élément de contact électrique (2), dans lequel le premier élément de verrouillage (22) est relié de manière fixe à la première extrémité (18), dans lequel la première extrémité (18) est inclinée de manière à ce que l'élément oblique (16) et le premier élément de verrouillage (22) incluent un angle (α), dans lequel la première extrémité (18) faisant face à la chambre de réception de l'élément de contact est arrondie.
  4. Élément de contact électrique selon la première variante de la revendication 1,
    caractérisé en ce que l'élément à crochet (30) s'étend dans la direction d'extraction (A).
  5. Élément de contact électrique selon l'une des revendications 2 à 4 précédentes,
    caractérisé en ce que l'élément de contact électrique (2) comporte un corps de contact (8) ayant un espace intérieur (13) délimité par une paroi intérieure (12) du corps de contact et une paroi extérieure (10) du corps de contact opposée à la paroi intérieure (12) du corps de contact,
    dans lequel la lance d'encliquetage (14) s'étend vers l'extérieur depuis la paroi extérieure (10) du corps de contact, dans lequel le premier élément de verrouillage (22) s'étend dans l'espace intérieur (13), dans lequel, à la première position, le premier élément de verrouillage (22) est relié par complémentarité de forme au second élément de verrouillage (24) dans l'espace intérieur (13).
  6. Élément de contact électrique selon la revendication 5, caractérisé en ce que, à la seconde position, le premier élément de verrouillage (22) ne s'étend pas à travers l'espace intérieur (13).
  7. Élément de contact électrique selon l'une des revendications précédentes, caractérisé en ce que l'élément de contact électrique (2) comportant le second élément de verrouillage (24) et la lance d'encliquetage (14) comportant le premier élément de verrouillage (22) sont réalisés en une seule pièce.
  8. Élément de contact électrique selon l'une des revendications précédentes, caractérisé en ce que l'élément de contact électrique (2) comportant le second élément de verrouillage (24) conjointement avec la lance d'encliquetage (14) comportant le premier élément de verrouillage (22) est une pièce cintrée par estampage.
EP12726434.9A 2011-08-03 2012-06-06 Élément de contact électrique présentant une lance encliquetable pour un boîtier de connecteur Active EP2740185B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011080362A DE102011080362A1 (de) 2011-08-03 2011-08-03 Elektrisches Kontaktelement mit Rastlanze für ein Steckergehäuse
PCT/EP2012/060759 WO2013017322A2 (fr) 2011-08-03 2012-06-06 Élément de contact électrique présentant une lance encliquetable pour un boîtier de connecteur

Publications (2)

Publication Number Publication Date
EP2740185A2 EP2740185A2 (fr) 2014-06-11
EP2740185B1 true EP2740185B1 (fr) 2018-03-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12726434.9A Active EP2740185B1 (fr) 2011-08-03 2012-06-06 Élément de contact électrique présentant une lance encliquetable pour un boîtier de connecteur

Country Status (5)

Country Link
EP (1) EP2740185B1 (fr)
CN (1) CN103703633B (fr)
DE (1) DE102011080362A1 (fr)
TW (1) TWI528649B (fr)
WO (1) WO2013017322A2 (fr)

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DE102014213965A1 (de) 2014-07-17 2016-01-21 Robert Bosch Gmbh Steckverbinderelement mit Rastlanze und Hakenelement sowie Steckergehäuse
DE102014216864B4 (de) * 2014-08-25 2017-05-11 Robert Bosch Gmbh Kontaktelement
EP3451467B1 (fr) * 2017-09-01 2022-02-23 Tyco Electronics France SAS Contact électrique d'une feuille de métal ayant une languette d'encliquetage et/ou une butée de fin de course allongée plastiquement et son procédé de fabrication
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EP2740185A2 (fr) 2014-06-11
CN103703633A (zh) 2014-04-02
TWI528649B (zh) 2016-04-01
TW201320488A (zh) 2013-05-16
CN103703633B (zh) 2017-04-26
DE102011080362A1 (de) 2013-02-07
WO2013017322A3 (fr) 2013-05-23
WO2013017322A2 (fr) 2013-02-07

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