EP2695249B1 - Système de mise à la masse à action avancée au moyen d'un élément ressort - Google Patents

Système de mise à la masse à action avancée au moyen d'un élément ressort Download PDF

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Publication number
EP2695249B1
EP2695249B1 EP12708282.4A EP12708282A EP2695249B1 EP 2695249 B1 EP2695249 B1 EP 2695249B1 EP 12708282 A EP12708282 A EP 12708282A EP 2695249 B1 EP2695249 B1 EP 2695249B1
Authority
EP
European Patent Office
Prior art keywords
plug connector
connector
complementary
contact
contact element
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.)
Not-in-force
Application number
EP12708282.4A
Other languages
German (de)
English (en)
Other versions
EP2695249A1 (fr
Inventor
Markus Kroeckel
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 EP2695249A1 publication Critical patent/EP2695249A1/fr
Application granted granted Critical
Publication of EP2695249B1 publication Critical patent/EP2695249B1/fr
Not-in-force 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/652—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding   with earth pin, blade or socket
    • 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
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • 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
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2442—Contacts for co-operating by abutting resilient; resiliently-mounted with a single cantilevered beam

Definitions

  • the invention relates to an electrical connector, an electrical connector and a method for connecting a connector with a complementary connector.
  • An electrical connector usually includes two electrical connectors which are nested to produce an electrical connection between electrical contact elements of a connector with the electrical contact elements of the other connector.
  • the one electrical connector is designed as a plug or a socket and the other electrical connector as a complementary can or complementary plug.
  • a can is understood to be a plug connector which has an opening or a cavity designed to receive the plug.
  • ground contact is an electrical contact between two contact elements, which are connected to the ground potential, which is usually 0 volts, or between two lines that should lead the ground potential.
  • An anticipatory ground contact is designed so that it establishes the electrical ground contact during mating of the connector before other electrical contact elements of the connector with each other in contact to step. In this way it can be avoided that electronic circuits are put under voltage before they are connected to the ground potential. Thus, damage to the electronic circuits can be avoided when the connector is made and lines are already powered.
  • one of the connector pins that is, rods of an electrically conductive material
  • the other connector to complementary receptacles for the pins.
  • An anticipatory ground pin can now be created by making the ground pin longer than the other pins, elongating the receptacle for the ground pin, or being displaced from the other receptacles such that its leading edge extends beyond the leading edges of the other receptacles.
  • Such a connector according to the preamble of claim 1 is in the DE102007039066 A1 disclosed.
  • one plug connector comprises a printed circuit board on which the electrical contact elements are designed as strip conductors, that is to say so-called "lands”
  • lands it is also known to provide an anticipatory ground contact in that the land connected to the ground potential is connected via the ground Lands protrudes for the other electrical contacts in the plug-in direction.
  • the extension of the ground contact element can also lead to an increase in space in the plug-in connection or in the connector concerned.
  • the object of the invention is therefore to provide an electrical connector in which an anticipatory ground contact is present without the ground contact is exposed to increased wear and without increasing the space of the connector in the insertion direction.
  • a first aspect of the invention relates to an electrical connector for connection to a complementary electrical connector.
  • the connector may be a plug or a socket and may also include pins or receptacles for pins as electrical contact elements.
  • the plug connector may comprise a printed circuit board which has the electrical contact elements as conductor tracks or the plug connector comprises clamps which are designed to contact the lands of a printed circuit board.
  • the connector has a plurality of electrical contact elements for connection to electrical contact elements of the complementary connector.
  • These electrical contact elements are usually all carried out the same, for example, the same length pins or the same length or equal running recordings for pins or equal running Lands on a circuit board.
  • the connector has a spring element which is electrically connected to a ground line of the connector.
  • the connector is designed such that when connecting the connector to the complementary connector, which usually by Pushing together or plugging together the two connectors, the spring element electrically contacted a ground contact element of the complementary connector.
  • the complementary connector having a contact element which is electrically connected to a ground line and which is designed such that it can touch the spring element during mating or connecting the connector. The contacting of the spring element with the ground contact element of the complementary connector takes place before another electrical contact element of the connector contacts a corresponding electrical contact element of the complementary connector. In this way, a ground contact is made via the spring element and the ground contact element of the complementary connector, before the other electrical contacts of the connector are produced.
  • ground line is a line to understand that has a ground potential when it is connected to a corresponding voltage source or when the power supply is turned on.
  • a spring element for producing the ground contact may have the advantage that no extended contact elements for the connector must be used, whereby space can be saved.
  • the mechanical stress of a spring element in that it can easily spring back and is deformable, not as large as with rigid electrical contact elements.
  • the risk is reduced to damage the leading ground contact of the connector, and also the mechanical wear of the connector is reduced.
  • the electrical contact elements are mounted as printed conductors on a printed circuit board, which is part of the connector.
  • the electrical contact elements can then all be made the same, which means that when plugging the connector with a corresponding connector, the electrical contact elements are all equally heavily mechanically stressed, resulting in a uniform wear.
  • the electrical contact elements of the connector are enclosed by a socket.
  • the connector may include a socket.
  • the spring element can be mounted on an inner wall of the socket, so that in addition to the electrical contact elements and the spring element is protected by the socket when the connector is not connected to the other component, that is the plug of the connector.
  • the plug connector comprises a plug, that is to say to be plugged into a corresponding socket.
  • the spring element for example, from the plug to the outside, for example, orthogonal to the plug-in direction, protrude.
  • the complementary connector has a ground contact element which is connected to the ground line of the complementary connector, wherein the ground contact element is attached to an inner wall of a socket of the complementary connector.
  • the connector in addition to the spring element additionally comprise a ground contact element for connection to a ground contact element of the complementary connector.
  • this ground contact element can then be constructed in the same way as the other electrical contact elements of the connector and by the spring element can then still be made an anticipatory ground contact.
  • the additional ground contact element may have the advantage that the spring element for producing the ground contact only during the mating has to establish the electrical connection between the two ground lines of the connector and the complementary connector. If the connector is completely plugged into the complementary connector or connected thereto, the ground contact can be made additionally or alternatively to the spring element with the additional ground contact element.
  • the spring element comprises a pressing spring for pressing the ground contact element of the connector to the ground contact element of the complementary connector. That's the way it is not necessary that the connector comprises an additional spring element for establishing the grounding. For this purpose, simply the existing pressure spring can be used.
  • the connector may be an interface to a printed circuit board, which may include electronic components and includes the electrical contact elements as traces on the edge of the circuit board.
  • a printed circuit board which may include electronic components and includes the electrical contact elements as traces on the edge of the circuit board.
  • Such an interface may comprise a bush, which is made of plastic, for example, which is attached to the edge of the circuit board and encloses the electrical contact elements, that is, Lands.
  • Such an interface generally has for each electrical contact element at least one spring element which serves to press an electrical contact element of the plug, which is inserted into the interface, on the land of the printed circuit board.
  • the pressing elements are, for example, orthogonal to the insertion direction of the inner wall.
  • the plug is usually connected to a wire harness that connects the electronic circuits on the board with other components
  • An electrically conductive pressure spring can now be connected for the ground contact element of the interface with the ground potential of the circuit board or the ground potential of the interface.
  • the location of the carrier of the electrical contact element of the plug, to which the pressure presses when the plug is plugged into the interface be provided with an electrical contact element which is connected to the ground line of the plug.
  • the spring element can now be attached to a point in the interface, that the contact between the pressure spring and the ground contact element of the plug takes place before inserting the plug into the interface, the other electrical contact elements of the connector, the contact elements on the circuit board, that is, for example, the Lands , touch. In this way, an anticipatory mass contacting is created without the problems presented above having to arise.
  • Such a construction also has the additional advantage that the EMC shielding (that is, the electromagnetic shielding) of the connector is improved, since at least the ground potential of the conductive spring element, which is at ground potential, is shielded.
  • a ground contact element may be present at the interface, for example a, for example, a rigid contact element injected into the interface collar wall, that is to say the inside of the socket.
  • an anticipatory ground contact via a spring element is always possible if a pressing element between two electrical contact elements, such as a contact carrier and an electrical conductor of the interface, is already present.
  • Such pressing elements are usually made of metal and thus electrically conductive.
  • the spring element is not a pressing element, but a separately mounted spring element. This may be, for example, an injected spring element on the interface collar, which may contact a ground contact element on the harness connector.
  • Another aspect of the invention also relates to a connector comprising a connector and a complementary connector as described above and below.
  • Another aspect relates to a method of connecting a connector to a complementary connector.
  • the connector and the complementary connector may be again connectors, as described above and below.
  • the method comprises the steps of: electrically contacting a spring element connected to the ground line of the connector with a ground contact element of the complementary connector; then electrically contacting at least one electrical contact element of the connector with a complementary electrical contact element of the complementary connector.
  • the preparation of the leading ground contact via a spring element and not via a rigid ground contact element which is generally similar in construction as the other electrical contact elements of the Connector. It should be understood that the connectors can be made such that the steps in the process of plugging a connector into the other connector.
  • the Fig. 1A shows a connector 10 in longitudinal section.
  • the connector 10 comprises a socket 12 and a plug 14.
  • the socket 12 is an interface or interface for a printed circuit board 16, at the edge of a socket 18 is mounted, which surrounds the edge of the circuit board 16.
  • On the circuit board 16 is an electrical contact element 20 in the form of a conductor 20, which is connected to the schematically illustrated ground potential 22 on the circuit board.
  • the spring elements 24a, 24b may, for example, be leaf springs made of a metal strip.
  • the two spring elements 24a, 24b are connected via lines 26 to the ground potential 22. However, it is also possible that only the lower spring element 24b or the upper spring element 24a is connected to the ground potential 22.
  • the can 18 has on its outer side an elevation 28, which can engage behind a corresponding clip element 30 of the plug 14 in order to fix the plug 14 to the can 12.
  • the plug 14 is connected to a wiring harness 32, which identifies a line 34 which is to be connected to the ground potential 22.
  • the line 34 is the ground line of the wiring harness 32 and the plug 14.
  • the plug 14 further comprises a contact carrier 36 which includes the electrical contact element 38, after the mating of the two connectors 12, 14 with the conductor 20 in contact should occur.
  • the contact carrier 36 may be made entirely of metal and be connected to the electrical line 34 or the contact carrier 36 may be made of plastic, in which the electrical contact element 38, which is electrically connected to the line 34, is cast.
  • the contact carrier 36 On its upper side, the contact carrier 36 has an elevation 40, which is electrically conductive and is also connected to the ground line 34. This elevation 40 may be cast in en contact carrier 40 when it is made of plastic.
  • the Fig. 1B shows the connector 10 in a mated condition by the plug 14 is completely pushed into the box 12. Like from the Fig. 1B shows the clip 30 while the edge 28 on the socket 12 and thus prevents falling out of the plug 14 from the box 12.
  • the spring element 24b presses from below against the plug 14 and the spring element 24a from above on the contact carrier 26, in On the one hand, an electrical connection between the line 34 via the elevation 40, the spring element 24a created with the ground potential 22 and on the other hand directly from the line 34 via the contact carrier 36, of the spring element 24a on the conductor 20th is pressed.
  • the spring element 24a is arranged in such a way in the socket 12 that upon mating of the plug 14 and the socket 12, the spring element 24a comes into contact with the superelevation 40 before the contact carrier 36 contacts the conductor track 20.
  • the connector 10 and the box 12 and the plug 14 have a plurality of electrical contacts, as in the cross-section in the Fig. 1A and 1B are shown.
  • the electrical contact elements for the ground contact are shown.
  • the contact carriers corresponding to the contact carrier 36 no elevations 40 which are electrically conductive or which are connected to the line 34 corresponding line.
  • the grounding occurs via the spring or the spring element 24a.
  • the short to ground can still take place via the associated country 20 of the contact 36, 20 or via another contact 36a, 20a.
  • Figs. 2A, 2B and 2C show a further embodiment of a connector 10 ', the can 12 and plug 14 is constructed substantially identical to the embodiment shown in the Fig. 1A and 1B is shown. However, in the case of Fig. 2A to 2C In the embodiment shown, the elevation 40 and the spring element 24a are arranged in such a way that a temporarily leading ground contact is produced via their contacting.
  • the Fig. 2A shows the connector 10 'or from the connectors 12, 14 existing plug-in system 10' in a position in which the connection is imminent. Neither the spring element 24a nor the conductor track 20 or the land 20 are in this first step with the contact carrier 36 in connection.
  • the Fig. 2B shows the connector 10 'in an intermediate position between the in Fig. 2A shown position and in the Fig. 2C shown position in which the plug 14 has not been pushed completely into the box 12.
  • the spring 24a has already contacted the elevation 40 and thus the contact carrier 36 so that a ground contact already exists over the spring element 24, but the contacting of the conductor track 20 with the contact carrier 36 has not yet taken place.
  • the ground contact via the spring element 24a or the pressure spring 24a is in the Fig. 2B schematically represented by the arrow 44.
  • a fourth step in which the plug 14 is fully inserted into the socket 12, the electrical connection between the pressure spring or the spring element 24a and the superelevation 40 dissolves and the ground contact between the contact carrier 36 and the conductor track 20 remains.
  • the end position of the plug 14 is reached in the box 12.
  • the spring element 24a no longer presses on the electrically conductive elevation 40, but on an insulating element 46 of the plug 14.
  • the contact element after loss of contact by the pressure spring or the spring element 24a, the ground contact completely abandon when before other contact elements of the connector 10 are already contacted and this includes also ground contacts. Therefore, no land 20 would be necessary for the temporary contact on the circuit board 16.
  • the contact element is merely designed to establish a ground contact between the spring element 24a and the contact carrier 36. In this case, the leading ground contact of this contact element would be completely temporary. The anticipatory ground contact occurs only temporarily during mating. After plugging, there is no electrical contact.
  • the short to ground of the connector 10 'in the end position is shown exclusively via the standard contact between the contact carrier 36 and the conductor 20.
  • This has the advantage that the leading ground contact is not permanent, and therefore does not have to be subject to dynamic wear.
  • the contact point on the spring element 24a need not be optimized with respect to a permanent ground contact.
  • a design of the spring element 24a can be avoided as a contact element, which could be expensive and possibly limit the connector 10 'in terms of their dynamic capacity.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (9)

  1. Connecteur (12) destiné à être connecté à un connecteur complémentaire (14), le connecteur (12) comprenant :
    au moins un élément de contact électrique (20, 20a) destiné à être connecté à un élément de contact électrique (36, 36a) du connecteur complémentaire,
    dans lequel le connecteur (12) comporte un élément à ressort (24a) qui est électriquement connecté à une ligne de masse (22) du connecteur (12) et le connecteur (12) est réalisé de manière à ce que, lors de la connexion du connecteur (12) au connecteur complémentaire (14), l'élément à ressort (24a) soit mis en contact électrique avec un élément de contact de masse (40) du connecteur complémentaire (14) avant que l'élément de contact électrique (20, 20a) du connecteur soit mis en contact avec l'élément de contact électrique (36, 36a) du connecteur complémentaire,
    caractérisé en ce que le connecteur est réalisé de manière à ce que l'élément à ressort (24a) ne soit mis en contact électrique avec l'élément de contact de masse (36) du connecteur complémentaire que pendant l'assemblage du connecteur avec le connecteur complémentaire.
  2. Connecteur (12) selon la revendication 1,
    dans lequel le connecteur comprend une carte de circuit imprimé (16) sur laquelle est monté l'au moins un élément de contact électrique (20) sous la forme d'une piste conductrice.
  3. Connecteur (12) selon la revendication 1 ou 2,
    dans lequel le connecteur comprend une douille (18) qui renferme l'au moins un élément de contact électrique (20).
  4. Connecteur (12) selon la revendication 3,
    dans lequel l'élément à ressort (24a) est monté sur une paroi interne de la douille (18).
  5. Connecteur selon la revendication 1 ou 2,
    dans lequel le connecteur comprend une fiche, dans lequel l'élément à ressort est réalisé de manière à être mis en contact électrique avec un élément de contact de masse du connecteur complémentaire, dans lequel l'élément de contact de mase est connecté à une ligne de masse du connecteur complémentaire,
    dans lequel l'élément de contact de masse est monté sur une paroi interne d'une douille du connecteur complémentaire.
  6. Connecteur (12) selon l'une quelconque des revendications précédentes, comprenant en outre :
    un élément de contact de masse (20) destiné à être connecté à un élément de contact de masse (36) du connecteur complémentaire (14),
    dans lequel l'élément à ressort (24a) comprend un ressort de pression permettant de comprimer l'élément de contact de masse (36) du connecteur (12) sur l'élément de contact de masse (36) du connecteur complémentaire (14).
  7. Connecteur (12) selon l'une quelconque des revendications précédentes, comprenant en outre :
    un élément de contact de masse (20) destiné à être connecté à un élément de contact de masse complémentaire (36) du connecteur complémentaire (14), dans lequel le connecteur (12) est réalisé de manière à ce que l'élément de contact de masse (20) soit mis en contact avec l'élément de contact complémentaire (36) après que l'élément à ressort (24a) a été mis en contact avec l'élément de contact de masse (36).
  8. Connexion enfichable (10, 10'), comprenant :
    un connecteur (12) selon l'une quelconque des revendications 1 à 7, et un connecteur complémentaire (14).
  9. Procédé permettant la connexion d'un connecteur (12) à un connecteur complémentaire (14), comprenant les étapes consistant à :
    mettre en contact électrique un élément à ressort (24a), qui est connecté à la ligne de masse (22) du connecteur, avec un élément de contact de masse (36) du connecteur complémentaire ;
    mettre ensuite en contact électrique au moins un élément de contact électrique (20, 20a) du connecteur avec un élément de contact électrique complémentaire (36, 36a) du connecteur complémentaire,
    caractérisé en ce que le connecteur est réalisé de manière à ce que l'élément à ressort (24a) ne soit mis en contact électrique avec l'élément de contact de masse (36) du connecteur complémentaire que pendant l'assemblage du connecteur avec le connecteur complémentaire.
EP12708282.4A 2011-04-06 2012-02-29 Système de mise à la masse à action avancée au moyen d'un élément ressort Not-in-force EP2695249B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011006834A DE102011006834A1 (de) 2011-04-06 2011-04-06 Voreilende Massekontaktierung mittels Federelement
PCT/EP2012/053431 WO2012136414A1 (fr) 2011-04-06 2012-02-29 Système de mise à la masse à action avancée au moyen d'un élément ressort

Publications (2)

Publication Number Publication Date
EP2695249A1 EP2695249A1 (fr) 2014-02-12
EP2695249B1 true EP2695249B1 (fr) 2017-04-12

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EP12708282.4A Not-in-force EP2695249B1 (fr) 2011-04-06 2012-02-29 Système de mise à la masse à action avancée au moyen d'un élément ressort

Country Status (9)

Country Link
US (1) US20140087573A1 (fr)
EP (1) EP2695249B1 (fr)
JP (1) JP2014513391A (fr)
KR (1) KR20130127507A (fr)
CN (1) CN103444014A (fr)
BR (1) BR112013025812A2 (fr)
DE (1) DE102011006834A1 (fr)
TW (1) TW201242187A (fr)
WO (1) WO2012136414A1 (fr)

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Also Published As

Publication number Publication date
US20140087573A1 (en) 2014-03-27
DE102011006834A1 (de) 2012-10-11
KR20130127507A (ko) 2013-11-22
BR112013025812A2 (pt) 2018-04-24
CN103444014A (zh) 2013-12-11
JP2014513391A (ja) 2014-05-29
TW201242187A (en) 2012-10-16
EP2695249A1 (fr) 2014-02-12
WO2012136414A1 (fr) 2012-10-11

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