EP2748899B1 - Steckerelement - Google Patents

Steckerelement Download PDF

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Publication number
EP2748899B1
EP2748899B1 EP12761557.3A EP12761557A EP2748899B1 EP 2748899 B1 EP2748899 B1 EP 2748899B1 EP 12761557 A EP12761557 A EP 12761557A EP 2748899 B1 EP2748899 B1 EP 2748899B1
Authority
EP
European Patent Office
Prior art keywords
plug
housing
locking
rocker
pull tab
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
EP12761557.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2748899A2 (de
Inventor
Olaf Kappla
Andreas Joseph Schmid
Katja SCHÖBER
Christoph UNTIEDT
Arno FRAHMANN
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.)
Leoni Kabel GmbH
Original Assignee
Leoni Kabel Holding 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 Leoni Kabel Holding GmbH filed Critical Leoni Kabel Holding GmbH
Publication of EP2748899A2 publication Critical patent/EP2748899A2/de
Application granted granted Critical
Publication of EP2748899B1 publication Critical patent/EP2748899B1/de
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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
    • H01R13/6335—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only comprising a handle
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6275—Latching arms not integral with the housing
    • 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

Definitions

  • the invention relates to a plug element with the features of the preamble of claim 1.
  • the plug element is a so-called flat plug with a locking mechanism, as used in particular in computer networks as an electrical or optical connector.
  • Such plug elements are also known under the terms "SFP” (small form factor pluggable) or n QSFP "(quad small form factor pluggable), and determines in corresponding standards in terms of their geometric dimensions. From WO 2011/089003 A1 is such a QSFP plug to remove. Furthermore, from the WO 2011/072869 A1 an SFP plug element (also referred to as CXP plug element) with the features of the preamble of claim 1.
  • the QSFP connector is basically characterized by a release mechanism, which is integrated in the side walls of the housing.
  • a release mechanism which is integrated in the side walls of the housing.
  • an approximately bow-shaped locking element is arranged, which is guided in the rear, rear region of the plug housing on the inside between two housing halves.
  • the locking element has two locking arms extending in the longitudinal direction in the side walls, on each of which a locking element is arranged at the end which projects laterally beyond the locking arm.
  • the locking element is formed in the SFP connector types on an upper side of the connector housing.
  • the locking element is formed overall in the manner of a rocker on which the locking element is formed in the front end.
  • an actuating element is arranged regularly, which manually transferred by pulling or turning the locking element from a locked to an unlocked position.
  • a pull tab is formed in each case, which is pulled in the longitudinal direction of the plug for unlocking.
  • plugs are used in particular for connecting data cables in computer networks to devices or distributors.
  • the installation space is often limited and the individual connectors are arranged very close together.
  • the plugs have suitable electronics, which are usually integrated on a printed circuit board.
  • the circuit board with corresponding contacts at the same time also forms a contact tongue, which is freely accessible at the front end of the plug housing, and via which a plug contact with the respective component is formed.
  • the plugs are generally designed for repeated end and locking.
  • the present invention seeks to provide such a connector element for a permanently reliable, reversible locking and unlocking.
  • the plug element has a locking mechanism for forming a lockable plug connection with a counterpart, wherein it has a longitudinally extending plug housing with two housing parts, namely an upper part and a lower part for this purpose.
  • the connector housing extends extending from a rear end wall with a cable opening for a cable to be connected to a front end side with an opening for a plug-in contact element.
  • the plug housing in this case usually forms a housing stage, which separates a rear part of a front connector area with which the plug is inserted into the counterpart (component).
  • the step is usually formed only at the top or possibly at the bottom.
  • the plug contact element is the printed circuit board already described.
  • the locking mechanism has a pull tab which is arranged outside the housing and can be moved in the longitudinal direction and which is non-rotatably connected to a locking element arranged at least partially within the housing.
  • the locking element in turn has a locking element for the positive end and locking of the male member with the counterpart.
  • the locking mechanism is preferably formed in two parts, namely, on the one hand the locking element has a rear mounting part, with which it is led out via the rear end wall of the housing and further as the second part has the pull tab., Which is permanently attached to this rear mounting part.
  • the at least two-part design makes it possible to provide differently designed, customer-specific pull-tabs, for example with customer-specific imprints or with customer-specific designs with otherwise identical parts.
  • Another decisive advantage is the fact that even with a tearing of the usually made of plastic pull tab, the assembly parts arranged outside the housing can still be gripped with a tool to perform an emergency release of the plug.
  • a one-piece design in particular made of plastic, in which therefore the pull tab and the reaching into the housing unlocking element are integrally formed of plastic, there is the problem of tearing within the housing, so that a release is impossible. With the design chosen here, therefore, an emergency release is possible.
  • the locking element has a tiltable about a horizontal axis of rotation rocker, which has the locking element at its front end.
  • a second Wipparm is provided, which preferably extends obliquely inclined and acts on the pull tab for actuating the rocker with a cross member.
  • the rocker and the locking element is designed such that the locking element is retracted upon actuation of the rocker from a locking position to an unlocking position inwardly towards a center of the housing.
  • the locking element is therefore pulled away from the counterpart (component) for the unlocking process.
  • the locking of the plug element is carried out with a cage-like insert in a housing of the components, wherein the locking element engages in a corresponding recess.
  • conventional SFP plug variants as they are also in the WO 2011/072869 A1 is described, the locking element engages from above into the corresponding recess on the mating housing and is pulled upwards for the unlocking position.
  • the cage or the counter housing element is therefore interposed between an upper side of the plug housing in the plug region and the locking element. Due to tolerance problems in the manufacture of such mounting cages, usually as stamped and bent parts are formed, it may cause problems when unlocking due to incomplete unlocking. The solution described here eliminates this problem.
  • a spring element is arranged in the front region, which exerts a spring force in the vertical direction on the front part of the rocker with the locking element.
  • the force direction is therefore perpendicular to the axis of rotation of the rocker, so that a possible rectangular force attack occurs.
  • the spring element pushes the rocker outwards into the locked position.
  • the spring element is in this case, for example, a leaf spring or a coil spring.
  • the rocker is preferably rotatably mounted on a pivot pin.
  • the rocker and the pivot pin are therefore two separate, relatively rotatable parts.
  • a possible low-friction bearing is achieved, whereby the force exerted by the spring element spring force is implemented as efficiently as possible for a secure locking.
  • the rocker mechanism is arranged in the rear portion of the connector housing. Accordingly, the rear portion is usually formed slightly higher building. In this rear portion of a receiving space for the rocker is formed in an expedient embodiment, which is closed to the further housing interior. Conveniently, this is done via a metallic shield plate, which is firmly connected to the housing, for example, riveted. In particular, the rear rocker arm is supported at this lower boundary of the receiving space, so that it is pressed into a defined basic position due to the spring force acting on the front region of the rocker.
  • the use of the shielding element furthermore has special EMC advantages, since this achieves a desired shielding effect. Due to the separate attachment of this shielding plate on the housing is beyond the Mechanics of unlocking, so the Wippfunktiontechnisch completely decoupled from the usual components in the connector housing.
  • the pull tab is especially riveted to the mounting part.
  • the pull tab is designed as a plastic part molded onto the mounting part.
  • the mounting part here preferably has form-locking elements such as holes, undercuts, etc. By spraying a total of visually a very pleasing overall impression is achieved.
  • the rivets are preferably held captive in the pull tab prior to actual attachment to the mounting part, so that a simple assembly is possible.
  • the locking element with the mounting part is preferably made of metal and thus in particular of a material having a higher tensile strength than the pull-tab made of plastic. This ensures that, in the event of mechanical overloading, the pull tab breaks outside the housing and not the locking element inside the housing.
  • the pull tab preferably extends generally on a plane of a housing outside, so that therefore the pull tab is arranged on one side of the cable supplied to the plug via the rear end wall.
  • the pull tab is here, viewed in a side view, formed approximately L-shaped, at least in the vicinity of the housing, and has two lateral vertical arms, which rest against the back of the housing and are secured to corresponding respective mounting legs of the mounting part. Between these two opposite vertical arms is the cable opening. The vertical arms extend in particular over the entire height of the plug housing.
  • a particular advantage of this embodiment is the fact that the pull tab can be attached either below or above with the same trained locking element. Generally, it is therefore provided in a preferred embodiment that the pull tab with respect.
  • the longitudinal direction can be mounted rotated by 180 °. According to a first variant, this is done solely by the different mounting only the pull tab itself and in a second variant, the pull tab is rotatable together with the locking element by 180 ° without further changes to the other components of the plug must be made.
  • the locking element is therefore in this case (QSFP) together with the pull tab optionally in one or the other (rotated by 180 ° about the longitudinal direction) mountable.
  • the mounting part further comprises a cross bar on which the pull tab is attached.
  • the cross bar here is a monolithic part with the rest of the mounting part, for example, a bent metal part.
  • the two L-shaped vertical arms are connected to each other via such a cross bar, which can also be arranged extending within the housing.
  • a play-free, step-like connection between the upper part and lower part is formed in a preferred embodiment in the front plug region of the plug housing.
  • upper part and lower part engage in one another while forming a step and at the same time have mutually corresponding mounting bevels, which allow pivoting of the two parts relative to each other for assembly purposes.
  • step-like training is in this case understood a positive connection in the vertical direction perpendicular to the longitudinal direction, so that in the vertical direction, the position of the two housing halves is fixed to each other.
  • this stage slope which is oriented for example at an angle between 30 ° and 60 °, there is the particular possibility that the two housing parts pivoted for assembly purposes relative to each other about a pivot axis be perpendicular to the longitudinal axis and parallel to a dividing plane of the two shell-like housing parts.
  • the one of the two housing parts in particular the upper part, for this purpose at its front end on its side walls in each case a parallel to the longitudinal direction extending nose, preferably with a rectangular side surface to which the mounting bevel adjoins.
  • the complementary lower part has correspondingly a recess with adjoining mounting bevel.
  • a positive connection of the housing parts is also formed, so that they are interlocked with each other for securing against horizontal displacement in the longitudinal direction.
  • the positive connection therefore acts in the longitudinal direction.
  • this rear positive connection of the two housing parts these are brought due to the pivoting movement.
  • the upper part is first with the nose ahead and inclined at an angle to the lower part inserted into the recess and then pivoted to the lower part.
  • the two housing parts engage at the rear end to form the toothing one another.
  • the one housing part, in particular the upper part, on its front end side has a bow bent in the direction of the lower part, which also surrounds the lower part in a form-fitting manner.
  • a reliable positive connection is achieved in the vertical direction perpendicular to the longitudinal direction.
  • a rivet guide is formed for this purpose, which extends through the housing wall, and which preferably guides the rivet over the entire length.
  • the rivet guide is formed at its two opposite ends with the smallest diameter.
  • the rivet guide as a whole is therefore bulged convexly in its middle region, for example.
  • the rivet guide can also be tapered at the ends.
  • the actual plug electronics are mounted in particular on a printed circuit board within the plug housing. This is preferably fixed in a preferred embodiment by edge pimples free of play and also clamped.
  • the nubs are arranged opposite to a respective housing part. The nubs are preferably arranged both in the upper part and in the lower part.
  • a flat plug is formed overall, which is particularly suitable for a possibly required emergency release, at the same time shows a reliable mechanical connection between the housing halves and also has an effectively acting locking mechanism, via spring elements, the locking elements each reliable and reversibly hold in the locking positions.
  • a plug element 2A, 2B each have a two-shell connector housing 4 with an upper part 4A and a lower part 4B.
  • the connector elements 2A, 2B extend in the longitudinal direction between a rear end wall 6 to a front end side 8.
  • a cable opening 10 is formed for a cable to be inserted.
  • the front end face 8 has an opening 12 for a plug contact element formed by a printed circuit board 14.
  • the connector housing 4 each have a housing stage 16, whereby the connector height, but not the width is reduced.
  • the two housing parts 4A, 4B are preferably connected exclusively in the rear region via fastening rivets 19.
  • a pull tab 24 is attached, which can be actuated only in the longitudinal direction, without a rotational movement is possible.
  • the locking element 22A, 22B each has a locking element 26A, 26B, which is designed in the manner of a protruding nose.
  • the latch member 22A is formed by two lateral longitudinal locking arms 28 or formed therethrough, at which end the latch member 26A is formed.
  • These locking arms 28 are sheet metal tabs, which is guided in a respective side wall 30 of the plug housing 2A.
  • the locking element 22B of the SFP plug element 22B is arranged on the upper side of the plug housing 4 in the plug region 18.
  • the connector housing 4 is also surrounded by an EMI cage for shielding purposes.
  • FIG. 3 Two basically different variants are shown.
  • the left half of the figure shows a variant in which the pull tab 24 has vertical arms 32, with which they on corresponding mounting legs 34 (see. FIG. 4 ) of the mounting part 20 is attached.
  • the pull tab 24 is fastened via rivets 36 to a cross bar 38, which forms the protruding mounting part 20.
  • a marking field for example, for attaching a brand name is formed between the lateral arms.
  • the mounting part is formed inside approximately as a U-shaped bracket with the outside vertically extending mounting legs.
  • the bracket of this mounting part 20 forms a transverse strut 40, with which a rocker 42 having the locking element 26B can be actuated.
  • the transverse strut 40 is oriented transversely to the longitudinal direction as well as transversely to the vertical direction in which, for example, the mounting legs 34 extend.
  • the longitudinal direction is generally as the extending direction from the rear end wall 6 to the front end face 8
  • the transverse direction is the extension direction perpendicular thereto from the left to the right side wall 30 (width)
  • the vertical direction is the extension direction perpendicular to the longitudinal direction and the transverse direction from the housing bottom to Housing top (height).
  • the mounting member 20 in the molded area for example, undercuts, openings, etc., as shown in FIG. 4 or even from the FIG. 5B can be seen.
  • the top 4A has in each case at its opposite side walls at the front end side thereof a longitudinally (horizontally) extending nose 44, to which a mounting slope 46 connects at an obtuse angle to the top of the housing at an angle.
  • the lower housing part 4B is provided with a recess 48 into which the nose 44 engages.
  • a mounting bevel 46 is formed on the lower part 4B.
  • the two housing parts 4A, 4B are in this front area without play into each other, so that a snug fit is formed. The two housing parts are therefore attached to each other in the vertical direction without play.
  • a form-locking connection acting in the longitudinal direction is additionally formed in the rear region of the two housing parts 4A, 4B ( FIGS. 7A, 7B ).
  • housing recesses 50 are provided on the housing parts 4A, 4B for forming a type of toothing.
  • FIG. 6 in combination with the step-shaped design, as in FIG. 6 is shown, thereby a reliable attachment of the two housing parts 4A, 4B allows each other.
  • the assembly takes place in such a way that first the upper housing part 4A is at least partially inserted with the nose 44 into the corresponding recess 48, oriented obliquely to the longitudinal direction and then pivoted in until the housing recesses 50 interlock in the rear region. Due to the toothing in the rear area therefore no parallel displacement in the longitudinal direction of the two housing parts 4A, 4B is possible for mounting. Rather, the pivoting movement is required.
  • the locking element 22B As already for FIG. 4 has been described, the locking element 22B, the rocker 42 which is mounted on a pivot pin 43. At the front end portion of the rocker 42, the latch member 26B is formed. The front End of the rocker 42 is further pressed by a spring element 52 upwards into a basic position. This basic position corresponds to a locking position.
  • the rocker 42 In the rear region, the rocker 42 has a rear rocker arm 54, which has at least on its underside an actuating bevel, with which the transverse strut 40 of the mounting member 20 is in contact.
  • the rear rocker arm 54 is supported at the bottom of a shield plate 56, which defines a receiving space 58 down together with housing part areas and closes.
  • the shield plate 56 is used in particular for EMC shielding and is again in FIG. 9 shown. It is riveted to the upper housing part 4B.
  • the locking element 22B by means of the pull tab 24 in the in 8B shown unlocked position transferred.
  • the pull-tab 24 is pulled rearwardly in the longitudinal direction, so that the transverse strut 40 slides along the slope of the rocker arm 54 and thus generates the rocking motion, so that the front rocker arm is pressed with the locking element 26B against the spring force down.
  • the rocker 42 has as a special feature a designed in the manner of a crosspiece actuator 60 for an emergency operation using a tool 62.
  • This actuator 60 is integrally formed on the rocker 42 and extends beyond the housing top, so that it is freely accessible from the outside. By pressing forward, the rocker 42 can be transferred to the unlocked position.
  • the lateral locking arms 28 are guided in the housing side walls 30 in the rear region on the inside, in which case a guide is formed by the housing itself.
  • a guide is formed by the housing itself.
  • in this rear area is the formed as a coil spring spring 64 captively attached to a respective locking arm 28.
  • the spring 64 extends in the longitudinal direction and presses the locking arms in a basic position, as in particular in FIG. 12A is shown.
  • the locking arms 28 are each bent slightly inwards.
  • this cranked portion of the outwardly shaped locking elements 26 B are arranged.
  • Corresponding to the bend and a wall region of the housing 4 is formed obliquely.
  • a locking lug of the counterpart in the side wall 30 a is formed in obliquely.
  • this latch plate is pushed away laterally outwards with the aid of the locking element 26A, so that the plug element 2A can be pulled out. This is done by pulling on the pull tab, so that the locking arm 28 is pulled backwards, as in the FIG. 12B is shown. In this case, the locking element 26A is pressed laterally outwards by the oblique wall region and thus unlocks the locking lug.
  • a sheet metal tab 66 is punched out of the locking arm 28 and bent over. How out FIG. 13 it can be seen, the locking arm 28 for this purpose has a roughly T-shaped punched-68 and the sheet metal tab 66 includes three part flaps, which are each bent at about 90 ° to form a cage-like clamp receptacle in which the spring 64 rests.
  • the inset in the plug housing 4 in the final assembled state circuit board 14 (see, eg FIG. 1 ) is preferably held in the connector housing 4 exclusively by clamping by marginal preferably formed on both housing parts 4A, 4B nubs 69.
  • the knobs 69 are preferably formed at the edge of a respective housing bottom of the upper part 4A and lower part 4B. Conveniently, they are formed both in the upper part 4A and in the lower part 4B, so that the printed circuit board 14 is preferably clamped in the transverse direction as well as in the vertical direction without play by the knobs 65 on the housing parts 4A, 4B.
  • the upper part 4A has at its front end 8 on a downwardly approximately vertically bent cross bar 70. This is connected via two lateral vertical arms and to these subsequent lateral horizontal arms with a housing top. By this design, an end opening is created through which the circuit board 14 can protrude frontally.
  • the cross bar 70 With the cross bar 70, the upper part 4A engages behind a corresponding cross-tab 72 of the lower part 4B.
  • the mutually corresponding contact surfaces of the transverse bow 70 on the end-side transverse tab of the lower part 4B are in this case beveled with respect to the horizontal in order to allow easy mounting.
  • a horizontally extending nosepiece is formed, which fits snugly against a shoulder on the cross-tab 72. Due to the slope, the two housing parts 4A, 4B are held together without play.
  • the two housing parts 4A, 4B are preferably fastened to one another exclusively in the rear region by two fastening rivets 19, which extend in the vertical direction through the two housing parts.
  • the front connector area 18 no further rivet fasteners or other fastening means are provided except the positive housing connections.
  • passages which are aligned with one another in the two housing parts 4A, 4B are formed to form a rivet guide 74. This is provided in the central region in comparison to their opposite ends with a larger diameter. So it has at its two opposite ends, so on the housing-side inlet or outlet openings on their smallest diameter.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP12761557.3A 2011-08-26 2012-08-23 Steckerelement Active EP2748899B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011111280 2011-08-26
DE102011088124 2011-12-09
PCT/EP2012/066455 WO2013030093A2 (de) 2011-08-26 2012-08-23 Steckerelement

Publications (2)

Publication Number Publication Date
EP2748899A2 EP2748899A2 (de) 2014-07-02
EP2748899B1 true EP2748899B1 (de) 2015-10-07

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EP12761557.3A Active EP2748899B1 (de) 2011-08-26 2012-08-23 Steckerelement

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US (1) US9118149B2 (zh)
EP (1) EP2748899B1 (zh)
CN (1) CN103918137B (zh)
WO (1) WO2013030093A2 (zh)

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EP2748899A2 (de) 2014-07-02
CN103918137A (zh) 2014-07-09
US20140179143A1 (en) 2014-06-26
WO2013030093A3 (de) 2013-05-30
WO2013030093A2 (de) 2013-03-07
US9118149B2 (en) 2015-08-25
CN103918137B (zh) 2016-10-26

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